Block 21851
- Hash
000000c0f9376812b8f3a8b029f74b03f4781d7a8029d4a6ba67fe5039e889eb- Confirmations
- 18931
- Time
- 2026-10-13 08:04:32 UTC
- Median time
- 2026-10-13 07:56:39 UTC
- Transactions
- 1
- Size
- 2,772
- Weight
- 10,980
- Difficulty
- 0.0031405554
- Bits
1e013e69- Merkle root
b37d80472bd99611409c774f0bb307855ef36a0987a6ba98c8adfbb6cc859d6e- Previous block
- 000000e68ae1fd532e7ca5639190bc2c6de0feda715b0ab6ffc9049a0f50175c
- Next block
- 00000092e79c3e3caafb3ece14ba05d5ea811c1b66b86481db45c3be5a19f541
ML-DSA-44 block signature (M2)
M2 is an experimental rule of this test network. From a height set in its build, a node that enforces M2 accepts a block only if, besides the classical signet signature, the block carries a valid ML-DSA-44 signature by the Ark-0 block key, in its coinbase's witness commitment output. This page shows that signature; it does not check it.
Block 21851 is at or above the activation height 20000: nodes that enforce M2 accept a block there only with a valid ML-DSA-44 block signature.
The node behind this site enforces M2 and holds this block, so its block signature passed the node's check.
- Status
- In the form M2 requires, followed by the signet solution push (the classical signature)
- Signature
523a204753aea1776dbd8fc2bf0c7c51…(2420 B)- Format version
0x01- Context string
SIGNET/PQBLOCK/EXP0- Block key the nodes require
- SHA-256
eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad
Transactions
| txid | Inputs | Outputs | Amount | Fee |
|---|---|---|---|---|
| b37d80472bd9…fbb6cc859d6e coinbase | 1 | 2 | 50 |