Block 21887
- Hash
000000a98df7ffb6126f9613b7928b899b88a5faef788dfaacf5607521a5f807- Confirmations
- 20224
- Time
- 2026-10-13 09:04:34 UTC
- Median time
- 2026-10-13 08:55:45 UTC
- Transactions
- 1
- Size
- 2,772
- Weight
- 10,980
- Difficulty
- 0.0031405554
- Bits
1e013e69- Merkle root
8875555cd06b5faac7c25cc7ca8392e159fdbb067ae90579d9084520734bbfa7- Previous block
- 0000012995e2a6b9e48e8fa65ac3ce26d1cc947014d08afb4024893a5f9064ad
- Next block
- 000000959a2afd69e6ece23e809691874777e94ba992581df06db8b8d886072c
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 21887 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
1ad2eef838338b72e209ad1ed59fc5cb…(2420 B)- Format version
0x01- Context string
SIGNET/PQBLOCK/EXP0- Block key the nodes require
- SHA-256
eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad
Transactions
| txid | Inputs | Outputs | Amount | Fee |
|---|---|---|---|---|
| 8875555cd06b…4520734bbfa7 coinbase | 1 | 2 | 50 |