Block 21388
- Hash
00000099b358bb018d2738a1ef8200b72c22af9edaae67da59f3c7d984a51e32- Confirmations
- 20694
- Time
- 2026-10-12 19:11:27 UTC
- Median time
- 2026-10-12 19:03:27 UTC
- Transactions
- 1
- Size
- 2,772
- Weight
- 10,980
- Difficulty
- 0.0031405554
- Bits
1e013e69- Merkle root
2b5fc10491e45b5ddbb91d092567a9a4fa064e395f02b669c3be754cf10e5084- Previous block
- 000000a72992b82a8161ec822755a17a3cf54603929a9cf4c15b7b865818bcf2
- Next block
- 00000052675936545769b0ec89149549f6c86cf7a5216d740b86e8a170911f96
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 21388 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
48c4a7fb1e4bbe80a3122ed0ec799851…(2420 B)- Format version
0x01- Context string
SIGNET/PQBLOCK/EXP0- Block key the nodes require
- SHA-256
eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad
Transactions
| txid | Inputs | Outputs | Amount | Fee |
|---|---|---|---|---|
| 2b5fc10491e4…754cf10e5084 coinbase | 1 | 2 | 50 |