Block 21644
- Hash
000000c8360e8d16c4c8570d9ad92e60910900d69d0ab3d55940818f006caabd- Confirmations
- 20495
- Time
- 2026-10-13 02:20:57 UTC
- Median time
- 2026-10-13 02:12:14 UTC
- Transactions
- 1
- Size
- 2,772
- Weight
- 10,980
- Difficulty
- 0.0031405554
- Bits
1e013e69- Merkle root
57828c1ddfe7c825769684919b9f62337d7b51734226cb15b8651f2269cccf92- Previous block
- 0000001d15777aa6e8a365174f8788e76ff58e126244ee1e62001eacac7a4ab0
- Next block
- 000000e3e9549ff8529d9912cf6c89f560157cb5c3e32798d0433894c99cae14
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 21644 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
bde2b1162a5cb6ac35f948d8d951268f…(2420 B)- Format version
0x01- Context string
SIGNET/PQBLOCK/EXP0- Block key the nodes require
- SHA-256
eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad
Transactions
| txid | Inputs | Outputs | Amount | Fee |
|---|---|---|---|---|
| 57828c1ddfe7…1f2269cccf92 coinbase | 1 | 2 | 50 |