Block 21899
- Hash
000000fd955e183763cb672ae1aaf0cb122259f30a7f250c3157dcfa1cc7d75f- Confirmations
- 20201
- Time
- 2026-10-13 09:24:47 UTC
- Median time
- 2026-10-13 09:16:42 UTC
- Transactions
- 1
- Size
- 2,772
- Weight
- 10,980
- Difficulty
- 0.0031405554
- Bits
1e013e69- Merkle root
1787a4c164c5bb96700f62aee7726bbe1128ee70480296a8401c4c8881e76e3d- Previous block
- 0000000f728611f6e078afd7ff2f107ab92acfd59c8d07c831879217fc8f8d5d
- Next block
- 0000013af3af2c35f64a7140a39517f700250d22d3dbd1bb15d77d3f62a7474d
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 21899 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
c0cc9acfa247ff5b876121a7070fa62d…(2420 B)- Format version
0x01- Context string
SIGNET/PQBLOCK/EXP0- Block key the nodes require
- SHA-256
eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad
Transactions
| txid | Inputs | Outputs | Amount | Fee |
|---|---|---|---|---|
| 1787a4c164c5…4c8881e76e3d coinbase | 1 | 2 | 50 |