Block 21491
- Hash
000000d4cfec999447b043bf96dfa98d8f7be9151e445554d570d8a1c3215d86- Confirmations
- 19301
- Time
- 2026-10-12 22:03:18 UTC
- Median time
- 2026-10-12 21:54:54 UTC
- Transactions
- 1
- Size
- 2,772
- Weight
- 10,980
- Difficulty
- 0.0031405554
- Bits
1e013e69- Merkle root
04002284c3ffe2a4105eea6228c122a1aa0393040377eafe62466055620937b3- Previous block
- 00000115fa99f18e498ad766ed70f423fa3c79607e1a1d64ee996d8f89787704
- Next block
- 0000001ca5827d66073af6a084a1415375c787a31a720c6dc00e88dd2e318102
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 21491 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
4fcbda3228aa67090d15f4f9e17b652e…(2420 B)- Format version
0x01- Context string
SIGNET/PQBLOCK/EXP0- Block key the nodes require
- SHA-256
eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad
Transactions
| txid | Inputs | Outputs | Amount | Fee |
|---|---|---|---|---|
| 04002284c3ff…6055620937b3 coinbase | 1 | 2 | 50 |