Block #1,254,703
0000000000014a2be1100bff2566fa63c89802b29e53e7d6270f416b99854fd4


Summary


Date
8/31, 2018 18:44utc(6y, 3mo, 28d ago)
Total Output
62,389.55XEC
In #/Out #
137/303
UTXO Δ
+166 (+29.4KB))
Min, Max Tx Size
223-698 B
Size
49.334 KB
Confirmations
386,654

Technical Details


Difficulty
1 x 10
Version
0x20000000 (decimal: 536870912)
Nonce
1920922645
Bits
1d00ffff
Merkle Root
6cab60d7babe30d7ca149f7faf10c184129940827e490e796240f6aba676a5b5
Chainwork
947.39 x 1018hashes (335ba3cb0c5a0241e5)

115 Transactions


OP_RETURN
data(utf-8) - XXXXXXXXXXXX DESC102 ; } return sum; } Running some results, we can see the probability drop off exponentially with z. q=0.1 z=0 P=1.0000000 z=1 P=0.2045873 z=2 P=0.0509779 z=3 P=0.0131722 z=4 P=0.
show raw
0

Total Output: 43.25XEC
OP_RETURN
data(utf-8) - XXXXXXXXXXXX DESC104 20 P=0.0024804 z=25 P=0.0006132 z=30 P=0.0001522 z=35 P=0.0000379 z=40 P=0.0000095 z=45 P=0.0000024 z=50 P=0.0000006 Solving for P less than 0.1%... P < 0.001 q=0.10 z=5 q=0.15 z=
show raw
0

Total Output: 30.9XEC
OP_RETURN
data(utf-8) - XXXXXXXXXXXX DESC90 r assumption that p > q, the probability drops exponentially as the number of blocks the attacker has to catch up with increases. With the odds against him, if he doesn't make a lu
show raw
0

Total Output: 31.96XEC
OP_RETURN
data(utf-8) - XXXXXXXXXXXX DESC110 proof-of-work chain as proof of what happened while they were gone. They vote with their CPU power, expressing their acceptance of valid blocks by working on extending them and re
show raw
0

Total Output: 47.69XEC
OP_RETURN
data(utf-8) - XXXXXXXXXXXX DESC100 k e − k! 1−q/ p z−k   Converting to C code... #include <math.h> double AttackerSuccessProbability(double q, int z) { double p = 1.0 - q; double lambda = z * (q / p); do
show raw
0

Total Output: 30.51XEC
OP_RETURN
data(utf-8) - XXXXXXXXXXXX DESC96 ining an alternate version of his transaction. The recipient waits until the transaction has been added to a block and z blocks have been linked after it. He doesn't know the exact
show raw
0

Total Output: 37.2XEC
OP_RETURN
data(utf-8) - XXXXXXXXXXXX DESC97 amount of progress the attacker has made, but assuming the honest blocks took the average expected time per block, the attacker's potential progress will be a Poisson distribution
show raw
0

Total Output: 23.74XEC
OP_RETURN
data(utf-8) - XXXXXXXXXXXX DESC93 pay back to himself after some time has passed. The receiver will be alerted when that happens, but the sender hopes it will be too late. The receiver generates a new key pair and
show raw
0

Total Output: 29.99XEC
OP_RETURN
data(utf-8) - XXXXXXXXXXXX DESC114 r, S. Haber, W.S. Stornetta, "Improving the efficiency and reliability of digital time-stamping," In Sequences II: Methods in Communication, Security and Computer Science, pages 3
show raw
0

Total Output: 18.74XEC
OP_RETURN
data(utf-8) - XXXXXXXXXXXX DESC85 e honest chain being extended by one block, increasing its lead by +1, and the failure event is the attacker's chain being extended by one block, reducing the gap by -1. The probab
show raw
0

Total Output: 5XEC
OP_RETURN
data(utf-8) - XXXXXXXXXXXX DESC98 with expected value: =z q p To get the probability the attacker could still catch up now, we multiply the Poisson density for each amount of progress he could have made by the pr
show raw
0

Total Output: 13.47XEC
OP_RETURN
data(utf-8) - XXXXXXXXXXXX DESC95 enough to get far enough ahead, then executing the transaction at that moment. Once the transaction is sent, the dishonest sender starts working in secret on a parallel chain conta
show raw
0

Total Output: 18.45XEC
OP_RETURN
data(utf-8) - XXXXXXXXXXXX DESC21 is that the fate of the entire money system depends on the company running the mint, with every transaction having to go through them, just like a bank. We need a way for the payee
show raw
0

Total Output: 5XEC
OP_RETURN
data(utf-8) - XXXXXXXXXXXX DESC94 gives the public key to the sender shortly before signing. This prevents the sender from preparing a chain of blocks ahead of time by working on it continuously until he is lucky
show raw
0

Total Output: 12.78XEC
OP_RETURN
data(utf-8) - XXXXXXXXXXXX YT+aa
show raw
0

Total Output: 31.48XEC
OP_RETURN
data(utf-8) - XXXXXXXXXXXX DESC112 idai.com/bmoney.txt, 1998. [2] H. Massias, X.S. Avila, and J.-J. Quisquater, "Design of a secure timestamping service with minimal trust requirements," In 20th Symposium on Inform
show raw
0

Total Output: 50.52XEC
OP_RETURN
data(utf-8) - XXXXXXXXXXXX DESC111 jecting invalid blocks by refusing to work on them. Any needed rules and incentives can be enforced with this consensus mechanism. References [1] W. Dai, "b-money," http://www.we
show raw
0

Total Output: 38.95XEC
OP_RETURN
data(utf-8) - XXXXXXXXXXXX DESC1 ents to be sent directly from one party to another without going through a financial institution. Digital signatures provide part of the solution, but the main benefits are lost if
show raw
0

Total Output: 29.57XEC
OP_RETURN
data(utf-8) - XXXXXXXXXXXX DESC99 obability he could catch up from that point: ∑ k=0 ∞  k e − k! ⋅{ q/ p z−k  if k≤z 1 if kz} Rearranging to avoid summing the infinite tail of the distribution... 1−∑ k=0 z 
show raw
0

Total Output: 40.46XEC
OP_RETURN
data(utf-8) - XXXXXXXXXXXX DESC88 ows [8]: p = probability an honest node finds the next block q = probability the attacker finds the next block qz = probability the attacker will ever catch up from z blocks behind
show raw
0

Total Output: 39.08XEC

Block Summary


{
    "hash": "0000000000014a2be1100bff2566fa63c89802b29e53e7d6270f416b99854fd4",
    "confirmations": 386654,
    "height": 1254703,
    "version": 536870912,
    "versionHex": "20000000",
    "merkleroot": "6cab60d7babe30d7ca149f7faf10c184129940827e490e796240f6aba676a5b5",
    "time": 1535741092,
    "mediantime": 1535738513,
    "nonce": 1920922645,
    "bits": "1d00ffff",
    "difficulty": 1,
    "chainwork": "0000000000000000000000000000000000000000000000335ba3cb0c5a0241e5",
    "nTx": 115,
    "previousblockhash": "00000000000001b3f1576b571825e23bcd6af2c485c534c66b6226771cbb72f8",
    "nextblockhash": "00000000000004cdec6aea5f39e2a5fd619e1075bf267093c665505f4941561a",
    "size": 49334,
    "tx": "See 'Transaction IDs'",
    "coinbaseTx": {
        "txid": "731626dc8ef0244bbff774c8e45968747a1ae5bc3d2702b438da2c068858c8ef",
        "hash": "731626dc8ef0244bbff774c8e45968747a1ae5bc3d2702b438da2c068858c8ef",
        "version": 2,
        "size": 131,
        "locktime": 0,
        "vin": [
            {
                "coinbase": "032f251304a48c895b68747470733a2f2f6769746875622e636f6d2f62636578742f01000017c0c3000000000000",
                "sequence": 4294967295
            }
        ],
        "vout": [
            {
                "value": 1563622.06,
                "n": 0,
                "scriptPubKey": {
                    "asm": "OP_DUP OP_HASH160 48b20e254c0677e760bab964aec16818d6b7134a OP_EQUALVERIFY OP_CHECKSIG",
                    "hex": "76a91448b20e254c0677e760bab964aec16818d6b7134a88ac",
                    "reqSigs": 1,
                    "type": "pubkeyhash",
                    "addresses": [
                        "ectest:qpytyr39fsr80emqh2ukftkpdqvdddcnfg7y5zvtt8"
                    ]
                }
            }
        ],
        "hex": "02000000010000000000000000000000000000000000000000000000000000000000000000ffffffff2e032f251304a48c895b68747470733a2f2f6769746875622e636f6d2f62636578742f01000017c0c3000000000000ffffffff01dee55109000000001976a91448b20e254c0677e760bab964aec16818d6b7134a88ac00000000",
        "blockhash": "0000000000014a2be1100bff2566fa63c89802b29e53e7d6270f416b99854fd4",
        "confirmations": 386651,
        "time": 1535741092,
        "blocktime": 1535741092
    },
    "totalFees": "1122.06",
    "subsidy": "1562500"
}

Transaction IDs


Loading...

Block Stats


{
    "avgfee": 9.84,
    "avgfeerate": 0.02,
    "avgtxsize": 430,
    "blockhash": "0000000000014a2be1100bff2566fa63c89802b29e53e7d6270f416b99854fd4",
    "height": 1254703,
    "ins": 137,
    "maxfee": 225,
    "maxfeerate": 0.99,
    "maxtxsize": 698,
    "medianfee": 4.38,
    "medianfeerate": 0.01,
    "mediantime": 1535738513,
    "mediantxsize": 437,
    "minfee": 2.27,
    "minfeerate": 0.01,
    "mintxsize": 223,
    "outs": 303,
    "subsidy": 1562500,
    "time": 1535741092,
    "total_out": 4675332.9,
    "total_size": 49122,
    "totalfee": 1122.06,
    "txs": 115,
    "utxo_increase": 166,
    "utxo_size_inc": 29446,
    "finalized": true
}
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