BTC broadcast

2. bitcoin receives payments almost instantaneously. However, there is an average delay of 10 minutes before the network starts adding your transaction to a block to confirm the transaction and that you can use the received bitcoin. Confirmation means that there is a consensus on the Internet that the bitcoin you receive is not used to pay others, so it is recognized as your property. Once your transaction is included in one block, all subsequent blocks will include it, which will greatly consolidate this consensus and rece the risk of transaction cancellation. Each user can determine the time when the transaction is confirmed, but generally speaking, receiving six confirmations is as safe as waiting six months after a credit card transaction
only full node clients like bitcoin core need longer synchronization time. Technically, synchronization is a process of downloading and verifying all previous bitcoin transactions on the network. Some bitcoin clients need to know all previous transactions to calculate the available balance of your bitcoin wallet and complete new transactions. This step consumes a lot of resources and needs enough bandwidth and space to store the whole block chain. In order to maintain the security of bitcoin, enough users need to use the full node client, because they play the role of confirmation and relay transactions.

3. First of all, bitcoin can not be regarded as currency. Second, bitcoin is a reward of incentive system. When a transaction is generated, people who broadcast to the whole network, judge the transaction and help the broadcast will get a reward (bitcoin)

4.

Two statements for reference are found from Babbitt:

1. bitcoin adopts a mathematical contest to determine the time when a transaction arrives at a node, and at the same time to protect this order. In bitcoin system, transactions are sorted by group allocation, Such groups are called blocks (transactions occurring at the same time will be divided into the same block), and then these blocks are linked together, which is called blockchain. Blockchain is used to sort transactions, while the transaction chain tracks and records the change of bitcoin ownership. These blocks are arranged according to time, which is a link. Transactions not in the block are called unconfirmed or unsorted transactions, and any node is about to put a group of unconfirmed transactions into the block, Then broadcast their suggestions about what the next block should be to other nodes in the network
   If multiple people generate blocks at the same time (the probability is very small), there will be multiple choices for the next block of the current block. In order to ensure the sequence of block links, the bitcoin system requires each effective block to include the answer to a special mathematical problem, and the computer calculates the text of the whole block, In addition, random guessing based on encrypted hash can be done until an output lower than a certain value is obtained. Hash function can create a short summary from any length of text. This fixed output value is very complex. The only way to find it is random guessing, which is called mining

2. when King released PPC last year, it introced checkpoint mechanism to protect against attacks in its early development. This mechanism enables it to resist 51% attacks. " Developers can control a parent node and broadcast "checkpoints" to the whole network, which allows other nodes to agree on certain blocks“ This is actually a [blockchain] continuity warning message, "he said< br />

5. What are you broadcasting without mining

6. There's a confirmation note. There's node approval. She's your unconfirmed note. Didn't you receive it in the communication

7. Doju sayumi
doju sayumi, Japanese idol singer, performer, and Songjin. Japan Women's Union "hayayasu girls Association" Sixth term seizure. It is also known as motoyuki aritake, Yuri Sato and Rena Tanaka. Birth, Yamaguchi, blood type A, 160 RI rice. The name is "Yu Yu" and "Satomi". Up front aggressor leader. The color is "powder color" > http://www.tudou.com/programs/view/87VggbtCNfU/

8. The eighth set of broadcast gymnastics is compiled by the State General Administration of sports on the basis of widely soliciting opinions from all sides and absorbing the advantages of the past several sets of broadcast gymnastics. It is scientific, basic, simple, universal and so on. Its promotion and popularization plays a very positive role in strengthening the national physique, improving work efficiency, cultivating the spirit of collectivism and enhancing organizational discipline
the first stretch (8 beats) × 4)
preparation position: upright
1. Raise your arms forward (palms facing each other)
2-3. Step forward with your left foot, move your center of gravity forward, and point your right foot to the ground; Step forward with your left foot and lower your head slightly, with the palms of your arms down, then turn back and forward to the side and lift up (palms opposite each other), look up and look at the front and top
4
5-8, the same as 1-4, but with the right foot
requirements and precautions: the second to third beat should be consistent
the second stage of chest expansion (8 beats) × 4)
preparation position: upright
1. Make a fist with both hands (the heart of the fist is downward), bend the arms horizontally from the front to the chest, and then vibrate
2. Straighten the arms forward (with the heart of the fist facing each other) until they are lifted laterally and vibrated backward
3. Clap your arms in front of you, then make a left bow step with your left foot. At the same time, make a fist with your two hands, and make your left arm bend horizontally in front of your chest (the heart of the fist is backward), and raise your right arm sideways, and the heart of the fist is forward) and vibrate backward. Turn your head to the right, and look to the right
4
5-8, the same as 1-4, but in the opposite direction
requirements and precautions:
1
in the second, third and seventh side lunges, keep the upper body straight, bend the knee, and the toes of the legs to the front, and align the knees with the toes
the third leg kick (8 beats) × 4)
preparation position: upright
1. Move the left foot forward (the center of gravity moves to the left foot and the right foot tip), and raise the arms from the front to the top (Palm forward)
2. Kick the right leg forward (about 90 degrees), and swing the arms forward and downward (palm back)
3
4
5-8, the same as 1-4, but with the right foot
requirements and precautions: keep your legs straight and your upper body upright when kicking
lateral movement of the fourth segment (8 beats) × 4)
preparation position: upright
1. Step left foot (shoulder width), lift left arm from side to side (palm inward), and fork right hand (tiger mouth upward)
2. Lift the left arm up, bend the upper body to the right once, and immediately return to the one shot position
3. Lift the left arm up, straighten the right arm (five fingers together, palm inward), extend the hand down the leg to the outside of the knee, and bend the upper body to the right again
4
5-8, the same as 1-4, but in the opposite direction
requirements and precautions:
1 when bending laterally, the legs should be straight, and the upper body should not lean forward or backward
2 lateral flexion should be flexible
section 5 body rotation (8 beats) × 4)
preparation position: upright
1. Step left foot (slightly wider than shoulder) and raise both arms (palm down)
2. Turn the upper body 90 degrees to the left, bend the left arm back to the elbow, press the back of the hand to the waist, bend the right arm horizontally in front of the chest, and touch the left shoulder (palm down)
3. Straighten the arms, bend the left arm in front of the chest, lift the right arm sideways (palm down), turn the upper body right 180 degrees, and see the right hand
4
5-8, the same as 1-4, but in the opposite direction
requirements and precautions: keep your feet still when you rotate
section 6 whole body exercise (8 beats) × 4)
preparation position: upright
1. Take a bow step with your left foot forward, and lift your arms up from front to side (palms opposite) to look up
2. Retract the left foot, bend the upper body forward, and touch the ground in front of the foot (palm back)
3. Squat in full, while holding the knees with both hands (two elbows outside, fingers opposite), and look at the front and bottom
5-8, the same as 1-4, but with the right foot
requirements and precautions:
1. When lunging, keep your hind legs straight, all feet on the ground, and slightly turn your heels inward
2
3. Keep your knees together and your heels on the ground
section 7 jumping (8 beats) × 4)
preparation position: upright
1. Jump up, fall on the ground with left and right legs apart, and bend both arms horizontally in front of the chest, clench both hands (the heart of the fist is downward)
2
3. Jump up, land with left and right legs separately, and at the same time, high five your arms on your head
4. Jump up and return to upright
5-8, the same as 1-4, the last beat of the fourth eight beat, two arms crossed in front, two hands half clenched (palm back)
requirements and precautions:
1. When clapping high five, the arm should be as straight as possible
2. Jumping should be flexible
section 8 finishing movement (8 beats) × 2)
preparation posture: upright, arms crossed in front, hands half clenched (fist heart backward)
1. Lift the left leg with a bent knee, lower leg droops naturally (the foot is about 15 cm above the ground), and swing both arms to the side (the heart of the fist is down)
2
3. The same as 1, but with the right leg
4. The movement is the same as 2, but when the arms cross in front of the body, the hands change from fist to palm and slightly lower the head
5. Turn your hands over and lift your arms to the side (palms facing each other). At the same time, raise your head slightly, hold your chest up and inhale
6. Lower your arms laterally to the front of your body (palm back), and lower your head slightly at the same time to exhale
7, the same as 5
8. The second eight is the same as the first eight, and the last one is upright.

9. The ninth set of radio gymnastics the eighth set of radio gymnastics
1 stretching exercise 1, Stretching exercise
2 limbs exercise
3 chest enlargement exercise
3 kicking exercise
4 body turning exercise
5 body turning exercise
6 body turning exercise
6 whole body exercise
7 lower limb exercise
7 jumping exercise
8 finishing exercise
9 finishing exercise Sports

the eighth radio gymnastics
standing still (8 beats) × 2)
preparation position: upright
step on your left foot
requirements and precautions: keep your feet about 15cm above the ground, keep your body upright, and swing your arms forward and backward naturally
the first stretch (8 beats) × 4)
preparation position: upright
1 raise your arms forward (palms facing each other)
2-3 step forward with your left foot, move your center of gravity forward, and point your right foot to the ground; Step forward with your left foot and lower your head slightly, with the palms of your arms down, then turn back and forward to the side and lift up (palms opposite each other), look up and look at the front and top
4 the arms were restored to upright position
5-8 is the same as 1-4, but do it with the right foot
requirements and precautions: the second to third beat should be consistent
the second stage of chest expansion (8 beats) × 4)
preparation position: upright
1 make a fist with both hands (the heart of the fist is downward), bend the arms horizontally from the front to the chest, and then vibrate
2 the arms are stretched forward (with the heart of the fist opposite) to the side and then vibrated
3 clap your arms in front of you, and then take a left bow step with your left foot. At the same time, clench your hands to make your left arm bend horizontally in front of your chest (boxing heart backward), and lift your right arm sideways (boxing heart forward) and vibrate backward. Turn your head to the right, and look to the right
4 reced to upright
5-8 is the same as 1-4, but the direction is opposite
requirements and precautions:
1 the movements are vigorous and flexible
2 ring the third and seventh side lunges, keep the upper body straight, bend the knee, and the toes of the legs to the front, and align the knees with the toes
the third leg kick (8 beats) × 4)
preparation position: upright
1 step forward with your left foot (the center of gravity moves to the left foot and the right foot tip), and lift your arms from the front to the top (Palm forward)
2 kick the right leg forward (about 90 degrees), and swing the arms forward and downward (palm back)
3 return to the one shot position
4 the arms were restored to upright position
5-8 is the same as 1-4, but do it with the right foot
requirements and precautions:
keep your legs straight and your upper body upright when kicking
lateral movement of the fourth segment (8 beats) × 4)
preparation position: upright
1 step left foot (shoulder width), lift left arm from side to side (palm inward), and fork right hand (tiger mouth upward)
2 lift the left arm up, bend the upper body to the right once, and immediately return to the 1-beat position
3 lift the left arm up, straighten the right arm (five fingers together, palm inward), extend the hand down the leg to the outside of the knee, and bend the upper body to the right again
4 the left arm was restored to upright position
5-8 is the same as 1-4, but the direction is opposite
requirements and precautions:
1 when bending laterally, the legs should be straight, and the upper body should not lean forward or backward
2 lateral flexion should be flexible
section 5 body rotation (8 beats) × 4)
preparation position: upright
1 step left foot (slightly wider than shoulder) and raise arms sideways (palm down)
2 turn the upper body 90 degrees to the left, bend the left arm back to the elbow, press the back of the hand to the waist, bend the right arm horizontally in front of the chest, and touch the left shoulder (palm down)
3 straighten your arms, bend your left arm in front of your chest, lift your right arm sideways (palm down), and turn your upper body 180 degrees to the right
4 reced to upright
5-8 is the same as 1-4, but the direction is opposite
requirements and precautions: keep your feet still when you rotate
section 6 whole body exercise (8 beats) × 4)
preparation position: upright
1 take a bow step with your left foot forward, and lift your arms up from front to side (palms opposite) to look up
2 retract the left foot, bend the upper body forward, and touch the ground in front of the foot (palm back)
3 squat in full, while holding the knees with both hands (two elbows outside, fingers opposite), and looking at the front and bottom
5-8 is the same as 1-4, but do it with the right foot
requirements and precautions:
1 when the lunge, the hind legs should be straight, the whole foot should be on the ground, and the heel should turn inward slightly
2. Keep your legs straight when you bend forward
3 when squatting, keep your knees together and your heels on the ground
section 7 jumping (8 beats) × 4)
preparation position: upright
1 jump up, fall to the ground with left and right legs apart, and bend both arms horizontally in front of the chest, and make a fist with both hands half clenched (the heart of the fist is downward)
2 jump up and return to upright
3 jump up, fall to the ground with left and right legs separately, and clap high five with two arms on the head
4 jump up and return to upright
5-8 is the same as 1-4, the last beat of the fourth eight beat, the two arms are crossed in front of the alt, and the two hands are half clenched (palm back)
requirements and precautions:
1 when clapping high five, the arm should be as straight as possible
2 the jumping should be flexible
section 8 finishing movement (8 beats) × 2)
preparation posture: upright, arms crossed in front, hands half clenched (fist heart backward)
1 bend your left leg and lift it up. Lower your leg naturally (your foot is about 15 cm above the ground). At the same time, swing your arms to the side (the heart of your fist is down)
2 return to the ready position
3 is the same as 1, but do it with the right leg
4 is the same as 2, but when the arms are crossed in front of the body, the hands change from fist to palm and slightly lower the head
5 turn your hands over, swing your arms to the side and lift them up (with palms opposite each other), raise your head slightly, hold your chest up and inhale
6 the arms fall laterally to the front of the body and cross (palm back), at the same time, slightly lower the head and exhale
7 is the same as 5
8 the arms were restored to the ready position. The second eight is the same as the first eight, and the last one is upright
requirements and precautions:
1 the arms bend naturally when they cross in front of each other
2 clap your hands on the 5th and 7th, and turn them over naturally to raise them to the side
3 pay attention to adjust breathing ring the movement< br /> http://www.chinasfa.net/tyjs/4jsc/dbtgbtc.htm

the ninth set of broadcast gymnastics (also known as "mass broadcast gymnastics") "Public broadcast gymnastics" consists of 8 sections of unarmed gymnastics, a total of 4 minutes and 45 seconds. It is based on the principle of "scientific and simple, universal and practical, suit measures to local conditions, fitness fun". While maintaining the characteristics of traditional broadcast gymnastics, it introces the basic movements of martial arts, shuttlecock kicking, swimming, bowling and modern dance, highlighting the style of "health, happiness and times". Broadcast gymnastics can stimulate the exercisers with moderate intensity, improve the sensitivity of joints, enhance the strength of large muscle groups, and improve the functions of circulatory system, respiratory system and mental conction system. On March 23, 2005, the State General Administration of sports held a press conference to promote "mass broadcast gymnastics" to the whole country. Broadcast gymnastics is a fitness activity with Chinese characteristics and loved by the masses. From 1951 to 1997, eight sets of broadcast gymnastics were launched in China. Recently, the unit organized to study the newly created "mass broadcast gymnastics". Although it is not listed as the ninth set of broadcast gymnastics, its launch marks the birth of China's first set of modern broadcast gymnastics in the new century
in my impression, with the eighth set of radio gymnastics, I went through the simple and hard-working student days
"now start to do, the eighth set of broadcast gymnastics, standing still, 1234, 5678, 2234, 567 stop, stretching..."
this set of mass broadcast gymnastics is very historic, its predecessor is Tianjin citizen broadcast gymnastics, was born in 2003 ring the anti SARS period. Public broadcast gymnastics includes warm-up part, basic part and recovery part. The basic part includes upper limb movement, neck movement, chest expansion movement, body rotation movement, lower limb movement, whole body movement, running and jumping movement. The length of accompaniment music is 4 minutes and 45 seconds. It is based on the principle of "scientific and simple, universal and practical, suit measures to local conditions, fitness fun". While maintaining the characteristics of traditional broadcast gymnastics, the design is more novel and pays more attention to the coordinated development of the body. It introces the basic movements of archery, aerobics, martial arts, shuttlecock, swimming, bowling and modern dance, and highlights the style of "health, joy and times". After experts' argumentation and scientific research test, the exercise proces moderate intensity, reasonable and specific stimulation to exercisers. It can promote the reasonable movement of all parts of the human body in a more comprehensive way, and has a positive effect on improving the sensitivity of all joints of the body, enhancing the strength of large muscle groups, and promoting the improvement of the functions of circulatory system, respiratory system and mental conction system, Suitable for people of all ages< br /> http://www.jokedm.com/v/.html