Block 21831
- Hash
000000ad5b8577dd258af1b1f7bf20f16f6271943a442d30bc5e1038c85631ae- Confirmations
- 19420
- Time
- 2026-10-13 07:32:05 UTC
- Median time
- 2026-10-13 07:24:11 UTC
- Transactions
- 1
- Size
- 2,772
- Weight
- 10,980
- Difficulty
- 0.0031405554
- Bits
1e013e69- Merkle root
462b1938e7684ee67b96c23747983f59d00ff2ab957c9ec1d868876b960fa0c6- Previous block
- 0000006608ee5ba4d7f31d8c5901ac53f8440c39b1742cfe4889d0ca675508ff
- Next block
- 000000ed3dcae8a99d87ae5a17b1e2cddd179e268e078bca3e1c19146b67475f
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 21831 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
b68c156f7b8701598a143d150efb894a…(2420 B)- Format version
0x01- Context string
SIGNET/PQBLOCK/EXP0- Block key the nodes require
- SHA-256
eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad
Transactions
| txid | Inputs | Outputs | Amount | Fee |
|---|---|---|---|---|
| 462b1938e768…876b960fa0c6 coinbase | 1 | 2 | 50 |