Address 0x7B89513c3Aa412D627fBeA19706fc0aa8745588e Details

0x7B89...45588e

23,153,661,452.82

PEPEP (PEPEP)

457 days 16 hrs ago

0x91994...22dbc8

Unoswap

0x7B89...45588e

217.05

kek (KEK)

459 days 10 hrs ago

0xd55ab...05f15a

Unoswap

0x7B89...45588e

218.72

kek (KEK)

459 days 10 hrs ago

0xd2f1c...394020

Swap

0x7B89...45588e

OUT

We live We love We lie (WLWLWL)

128,914.83

wen (WEN)

459 days 10 hrs ago

0xd2f1c...394020

Swap

0x7B89...45588e

OUT

2,630.91

459 days 10 hrs ago

Execute

0x7B89...45588e

47,787,034.65

459 days 11 hrs ago

0x5dda5...53915c

Uni V2_swap Exact ETH For Tokens_pct Fee

0x7B89...45588e

2,500,884,257.36

Shen Long (SHENLONG)

459 days 11 hrs ago

0x2ec67...7f4371

Uni V2_swap Exact ETH For Tokens_pct Fee

0x7B89...45588e

131,545.75

wen (WEN)

459 days 11 hrs ago

0x23d9b...cabec4

Unoswap

0x7B89...45588e

561,200.02

BOBO (BOBO)

460 days ago

0x66f8b...08e52d

Uni V2_swap Exact ETH For Tokens_pct Fee

0x7B89...45588e

132,647,401.15

Together (TGH)

460 days 1 hrs ago

0xbc887...2b3d32

Uni V2_swap Exact ETH For Tokens_pct Fee

0x7B89...45588e

3,514,193.05

Wapple (WAPPLE)

460 days 10 hrs ago

0xb94f4...28a47a

Uni V2_swap Exact ETH For Tokens_pct Fee

SonicVsTailsVsKnuckles (RINGS)

0x7B89...45588e

2,245,510.85

Meff (MEFF)

460 days 11 hrs ago

0x94910...94f05e

Uni V2_swap Exact ETH For Tokens_pct Fee

0x9dEa...476661

0x7B89...45588e

139,168,581,580.47

Baby Sally (BSALLY)

460 days 12 hrs ago

0x36ba2...2ec62f

Uni V2_swap Exact ETH For Tokens_pct Fee

0xa3fF...49ab81

0x7B89...45588e

95,412.11

460 days 12 hrs ago

0x09106...87bead

Uni V2_swap Exact ETH For Tokens_pct Fee

0x7B89...45588e

3,964,293,487.15

Zoolie (ZOOLIE)

460 days 12 hrs ago

0xab9ed...a58556

Uni V2_swap Exact ETH For Tokens_pct Fee

0x42b5...51f9f6

0x7B89...45588e

979,530,670,796.30

REKT (REKT)

460 days 12 hrs ago

0x84f08...3bc22b

Uni V2_swap Exact ETH For Tokens_pct Fee

0xBF03...9b31eC

0x7B89...45588e

6,874,737.06

POPO (POPO)

460 days 14 hrs ago

0x6e2f9...a0d798

Uni V2_swap Exact ETH For Tokens_pct Fee

0x7B89...45588e

981,247.56

Bibi (BIBI)

460 days 15 hrs ago

0xcaa92...3e228e

Uni V2_sell_pct Fee

0x7B89...45588e

OUT

2,385,249,909,184.60

SHIFU (SHIFU)

460 days 16 hrs ago

0xcaa92...3e228e

Uni V2_sell_pct Fee

0x7B89...45588e

OUT

SHIFU

24,093,433,426.11

SHIFU (SHIFU)

460 days 16 hrs ago

0xb0af8...37b0f5

Uni V2_sell_pct Fee

0x7B89...45588e

OUT

519,970,176,190.17

ƎԀƎԀ (ƎԀƎԀ)

460 days 16 hrs ago

0xe5d73...e9ec81

Uni V2_sell_pct Fee

0x7B89...45588e

OUT

53,790.72

460 days 16 hrs ago

0xe5d73...e9ec81

Uni V2_sell_pct Fee

0x7B89...45588e

OUT

Yoba Coin

543.34

460 days 16 hrs ago

0x42d63...d79fc1

Uni V2_swap Exact ETH For Tokens_pct Fee

0x7B89...45588e

2,409,343,342,610.71

SHIFU (SHIFU)

460 days 16 hrs ago

0x53af0...8d9708

Uni V2_sell_pct Fee

0x7B89...45588e

OUT

53,790.72

460 days 16 hrs ago

0x53af0...8d9708

Uni V2_sell_pct Fee

0x7B89...45588e

OUT

Yoba Coin

543.34

460 days 16 hrs ago

0xfafd4...119d60

Uni V2_swap Exact ETH For Tokens_pct Fee

0x7B89...45588e

108,668.12

460 days 16 hrs ago

0x317ad...17e15a

Uni V2_sell_pct Fee

0x7B89...45588e

OUT

519,970,176,190.17

ƎԀƎԀ (ƎԀƎԀ)

460 days 17 hrs ago

0xe60c3...ceef52

Uni V2_swap Exact ETH For Tokens_pct Fee

Bitcoin As A State Transition System \n \n From a technical standpoint, the ledger of a cryptocurrency such as Bitcoin can be thought of as a state transition system, where there is a *state* consisting of the ownership status of all existing bitcoins and a *state transition function* that takes a state and a transaction and outputs a new state which is the result. In a standard banking system, for example, the state is a balance sheet, a transaction is a request to move $X from A to B, and the state transition function reduces the value in A's account by $X and increases the value in B's account by $X. If A's account has less than $X in the first place, the state transition function returns an error. Hence, one can formally define: \n The *state* in Bitcoin is the collection of all coins (technically, *unspent transaction outputs* or UTXO) that have been minted and not yet spent, with each UTXO having a denomination and an owner (defined by a 20-byte address which is essentially a cryptographic public keyfn1). A transaction contains one or more inputs, with each input containing a reference to an existing UTXO and a cryptographic signature produced by the private key associated with the owner's address, and one or more outputs, with each output containing a new UTXO to be added to the state. The state transition function APPLY(S,TX) -> S' can be defined roughly as follows: For each input in TX: If the referenced UTXO is not in S, return an error. If the provided signature does not match the owner of the UTXO, return an error. If the sum of the denominations of all input UTXO is less than the sum of the denominations of all output UTXO, return an error. Return S with all input UTXO removed and all output UTXO added The first half of the first step prevents transaction senders from spending coins that do not exist, the second half of the first step prevents transaction senders from spending other people's coins, and the second step enforces conservation of value. In order to use this for payment, the protocol is as follows. Suppose Alice wants to send 11.7 BTC to Bob. First, Alice will look for a set of available UTXO that she owns that totals up to at least 11.7 BTC. Realistically, Alice will not be able to get exactly 11.7 BTC; say that the smallest she can get is 6+4+2=12. She then creates a transaction with those three inputs and two outputs. The first output will be 11.7 BTC with Bob's address as its owner, and the second output will be the remaining 0.3 BTC *change*, with the owner being Alice herself. \n \n Mining \n \n If we had access to a trustworthy centralized service, this system would be trivial to implement; it could simply be coded exactly as described, using a centralized server's hard drive to keep track of the state. However, with Bitcoin we are trying to build a decentralized currency system, so we will need to combine the state transaction system with a consensus system in order to ensure that everyone agrees on the order of transactions. Bitcoin's decentralized consensus process requires nodes in the network to continuously attempt to produce packages of transactions called *blocks*. The network is intended to produce roughly one block every ten minutes, with each block containing a timestamp, a nonce, a reference to (ie. hash of) the previous block and a list of all of the transactions that have taken place since the previous block. Over time, this creates a persistent, ever-growing, *blockchain* that constantly updates to represent the latest state of the Bitcoin ledger. The algorithm for checking if a block is valid, expressed in this paradigm, is as follows: Check if the previous block referenced by the block exists and is valid. Check that the timestamp of the block is greater than that of the previous blockfn2 and less than 2 hours into the future Check that the proof-of-work on the block is valid. Let S[0] be the state at the end of the previous block. Suppose TX is the block's transaction list with n transactions. For all i in 0...n-1, set S[i+1] = APPLY(S[i],TX[i]) If any application returns an error, exit and return false. Return true, and register S[n] as the state at the end of this block. Essentially, each transaction in the block must provide a valid state transition from what was the canonical state before the transaction was executed to some new state. Note that the state is not encoded in the block in any way; it is purely an abstraction to be remembered by the validating node and can only be (securely) computed for any block by starting from the genesis state and sequentially applying every transaction in every block. Additionally, note that the order in which the miner includes transactions into the block matters; if there are two transactions A and B in a block such that B spends a UTXO created by A, then the block will be valid if A comes before B but not otherwise. The one validity condition present in the above list that is not found in other systems is the requirement for *proof-of-work*. The precise condition is that the double-SHA256 hash of every block, treated as a 256-bit number, must be less than a dynamically adjusted target, which as of the time of this writing is approximately 2187. The purpose of this is to make block creation computationally *hard*, thereby preventing sybil attackers from remaking the entire blockchain in their favor. Because SHA256 is designed to be a completely unpredictable pseudorandom function, the only way to create a valid block is simply trial and error, repeatedly incrementing the nonce and seeing if the new hash matches. At the current target of ~2187, the network must make an average of ~269 tries before a valid block is found; in general, the target is recalibrated by the network every 2016 blocks so that on average a new block is produced by some node in the network every ten minutes. In order to compensate miners for this computational work, the miner of every block is entitled to include a transaction giving themselves 25 BTC out of nowhere. Additionally, if any transaction has a higher total denomination in its inputs than in its outputs, the difference also goes to the miner as a *transaction fee*. Incidentally, this is also the only mechanism by which BTC are issued; the genesis state contained no coins at all. In order to better understand the purpose of mining, let us examine what happens in the event of a malicious attacker. Since Bitcoin's underlying cryptography is known to be secure, the attacker will target the one part of the Bitcoin system that is not protected by cryptography directly: the order of transactions. The attacker's strategy is simple: Send 100 BTC to a merchant in exchange for some product (preferably a rapid-delivery digital good) ait for the delivery of the product Produce another transaction sending the same 100 BTC to himself Try to convince the network that his transaction to himself was the one that came first. Once step (1) has taken place, after a few minutes some miner will include the transaction in a block, say block number 270000. After about one hour, five more blocks will have been added to the chain after that block, with each of those blocks indirectly pointing to the transaction and thus *confirming* it. At this point, the merchant will accept the payment as finalized and deliver the product; since we are assuming this is a digital good, delivery is instant. Now, the attacker creates another transaction sending the 100 BTC to himself. If the attacker simply releases it into the wild, the transaction will not be processed; miners will attempt to run APPLY(S,TX) and notice that TX consumes a UTXO which is no longer in the state. So instead, the attacker creates a *fork* of the blockchain, starting by mining another version of block 270000 pointing to the same block 269999 as a parent but with the new transaction in place of the old one. Because the block data is different, this requires redoing the proof-of-work. Furthermore, the attacker's new version of block 270000 has a different hash, so the original blocks 270001 to 270005 do not *point* to it; thus, the original chain and the attacker's new chain are completely separate. The rule is that in a fork the longest blockchain is taken to be the truth, and so legitimate miners will work on the 270005 chain while the attacker alone is working on the 270000 chain. In order for the attacker to make his blockchain the longest, he would need to have more computational power than the rest of the network combined in order to catch up (hence, *51% attack*). (GENESIS)

0x7B89...45588e

1,039,940,352,380.34

ƎԀƎԀ (ƎԀƎԀ)

460 days 17 hrs ago

0x63624...6c7183

Execute

0xcF04...8a7608

0x7B89...45588e

327,012.69

460 days 19 hrs ago

0xd3569...d56bbc

Uni V2_swap Exact ETH For Tokens_pct Fee

0x7B89...45588e

83,610.84

Ⲙⲟⲟⲛⲥⲁⲧⲥⲏⲉꞅ (MOONC)

461 days 17 hrs ago

0x238aa...c57d21

Uni V2_swap Exact ETH For Tokens_pct Fee

Real Pineapple Owl (Pineowl)

0x7B89...45588e

3,737,555.42

It's OK (OK)

461 days 17 hrs ago

0x53fbd...1bb548

Uni V2_sell_pct Fee

0x7B89...45588e

OUT

0x115a...53fC5C

156,443,007.98

461 days 17 hrs ago

0x0f277...e470ce

Uni V2_swap Exact ETH For Tokens_pct Fee

Real Pineapple Owl (Pineowl)

0x7B89...45588e

725.40

ANON BOT ($ANON)

461 days 17 hrs ago

0xd1559...1131e5

Uni V2_swap Exact ETH For Tokens_pct Fee

0x115a...53fC5C

0x7B89...45588e

156,443,007.98

461 days 18 hrs ago

0x05668...98e18d

Uni V2_swap Exact ETH For Tokens_pct Fee

0x57B2...713d98

0x7B89...45588e

214,381.14

Smurfs (SMURF)

461 days 19 hrs ago

0x266f2...3185f9

Uni V2_sell_pct Fee

0x7B89...45588e

OUT

201,176.86

FEFE ($FINEKILLER)

461 days 20 hrs ago

0x266f2...3185f9

Uni V2_sell_pct Fee

0x7B89...45588e

OUT

FEFE

2,032.09

FEFE ($FINEKILLER)

461 days 20 hrs ago

0xcc0dd...d3d5bc

Uni V2_swap Exact ETH For Tokens_pct Fee

0x7B89...45588e

203,208.95

FEFE ($FINEKILLER)

461 days 20 hrs ago

0x0edce...55dd07

Uni V2_swap Exact ETH For Tokens_pct Fee

Real Banana Dog (банановая)

0x7B89...45588e

29,885,725.24

461 days 20 hrs ago

0x15910...6b6a9b

Uni V2_swap Exact ETH For Tokens_pct Fee

Real Apple Cat (яблочныйкот)

0x7B89...45588e

1,945,169.54

461 days 21 hrs ago

0xab3cb...ef2902

Uni V2_sell_pct Fee

0x7B89...45588e

OUT

Shut Up and Take my Money ($SHUTUP)

307,339.53

461 days 21 hrs ago

0xab3cb...ef2902

Uni V2_sell_pct Fee

0x7B89...45588e

OUT

Shut Upand Takemy Money

3,104.44

Shut Up and Take my Money ($SHUTUP)

461 days 21 hrs ago

0x9b743...e0a098

Uni V2_swap Exact ETH For Tokens_pct Fee

Shut Up and Take my Money ($SHUTUP)

0x7B89...45588e

310,443.97

461 days 21 hrs ago

0xcc8fa...fea5b7

Uni V2_swap Exact ETH For Tokens_pct Fee

Real Smurf Inu (СмурфИну)

0x7B89...45588e

234,545.88

461 days 23 hrs ago

0xe518a...447a36

Uni V2_sell_pct Fee

0x7B89...45588e

OUT

Real Pineapple Owl (дегенерация)

175,341.94

461 days 23 hrs ago

0x57140...c2a82e

Uni V2_swap Exact ETH For Tokens_pct Fee