Block 21903
- Hash
0000011a31b0739b41e71a08043c3295bd0d6b0714a7033d2c9de7dd165ef551- Confirmations
- 20116
- Time
- 2026-10-13 09:31:19 UTC
- Median time
- 2026-10-13 09:23:00 UTC
- Transactions
- 1
- Size
- 2,772
- Weight
- 10,980
- Difficulty
- 0.0031405554
- Bits
1e013e69- Merkle root
a2a2f27f3d61dae14b034ec58b91c679d92ccf0034395fc9f67c71160231254d- Previous block
- 0000007e5e122ea9ced22b6d688e2d787cf8f0be184ea14e5cea9960b9318cd2
- Next block
- 0000009ea3a612009d31b7c34120d014d9c2e7110414053b996fee18cd7fb56e
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 21903 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
1caea77a782f60a1ead29c27501380a3…(2420 B)- Format version
0x01- Context string
SIGNET/PQBLOCK/EXP0- Block key the nodes require
- SHA-256
eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad
Transactions
| txid | Inputs | Outputs | Amount | Fee |
|---|---|---|---|---|
| a2a2f27f3d61…71160231254d coinbase | 1 | 2 | 50 |