Block 21387
- Hash
000000a72992b82a8161ec822755a17a3cf54603929a9cf4c15b7b865818bcf2- Confirmations
- 20703
- Time
- 2026-10-12 19:09:38 UTC
- Median time
- 2026-10-12 19:01:52 UTC
- Transactions
- 1
- Size
- 2,772
- Weight
- 10,980
- Difficulty
- 0.0031405554
- Bits
1e013e69- Merkle root
159c59bfa2f7246c46f495609bda736e730fa3588b8ab3df336e6b32b46e772e- Previous block
- 000000738ef22689a5a76f2fb252fffd52cfeaa5e17960209031a8c9a36e404a
- Next block
- 00000099b358bb018d2738a1ef8200b72c22af9edaae67da59f3c7d984a51e32
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 21387 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
2fdf429741626134641d803a2941976d…(2420 B)- Format version
0x01- Context string
SIGNET/PQBLOCK/EXP0- Block key the nodes require
- SHA-256
eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad
Transactions
| txid | Inputs | Outputs | Amount | Fee |
|---|---|---|---|---|
| 159c59bfa2f7…6b32b46e772e coinbase | 1 | 2 | 50 |