Block 21816
- Hash
0000005bc2bf056ef503e2789665c179e11071be51af7c6bdc302325dc57dcdf- Confirmations
- 20165
- Time
- 2026-10-13 07:07:54 UTC
- Median time
- 2026-10-13 06:59:29 UTC
- Transactions
- 1
- Size
- 2,772
- Weight
- 10,980
- Difficulty
- 0.0031405554
- Bits
1e013e69- Merkle root
b8ffa8b2045c79f4ff197eeec821ad7040a3d933292f886064de0fd35b0b52b5- Previous block
- 0000011771f6800d14f4da32306147b6eec3d1b516dd07bdfc254c9515e87437
- Next block
- 0000001107692b50b6aeadd26913734ea4ee12873eca9b4c477d75ea5c3438e9
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 21816 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
3773ba1bd427f9a3e5471a16e1856151…(2420 B)- Format version
0x01- Context string
SIGNET/PQBLOCK/EXP0- Block key the nodes require
- SHA-256
eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad
Transactions
| txid | Inputs | Outputs | Amount | Fee |
|---|---|---|---|---|
| b8ffa8b2045c…0fd35b0b52b5 coinbase | 1 | 2 | 50 |