Block 21400
- Hash
0000004cfef1112431c52fe23a90db5616005c39be9b5c063c48e55216580771- Confirmations
- 20684
- Time
- 2026-10-12 19:31:20 UTC
- Median time
- 2026-10-12 19:23:03 UTC
- Transactions
- 1
- Size
- 2,772
- Weight
- 10,980
- Difficulty
- 0.0031405554
- Bits
1e013e69- Merkle root
a9436017ebdef150de20200fef9ef74fefaccf7f51e1b2136a8d632ae21db077- Previous block
- 000000865fe06d5fe65be2f35a006a3bab3b252bf2e1a06a1d14e5f893009f90
- Next block
- 000000c9c2e834996352c7833ac3fb24d59501fc3e0e55cd55543bd58ecbc35f
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 21400 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
67651eb39f4eaccc14e695bb8f7f33a7…(2420 B)- Format version
0x01- Context string
SIGNET/PQBLOCK/EXP0- Block key the nodes require
- SHA-256
eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad
Transactions
| txid | Inputs | Outputs | Amount | Fee |
|---|---|---|---|---|
| a9436017ebde…632ae21db077 coinbase | 1 | 2 | 50 |