Block 21303
- Hash
0000003c1b6548b3e2d93c96d9a787c80d67d75f649cb55ef28455735818d065- Confirmations
- 19895
- Time
- 2026-10-12 16:49:16 UTC
- Median time
- 2026-10-12 16:41:15 UTC
- Transactions
- 1
- Size
- 2,772
- Weight
- 10,980
- Difficulty
- 0.0031405554
- Bits
1e013e69- Merkle root
f39a11ba06cd11ea0041a3f51537fd72da2064bb8aa67b2d46af453fb5a1ec13- Previous block
- 00000124fbf169f32b29fe845f7dc1f57ab2c8634c5ee538ad9145ef7b6c414d
- Next block
- 0000013d4c595e061b359dbf4474c576d94c59b8aaccce28935beedce1601698
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 21303 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
1423e7d0aaf19385431dc598bc19d2b0…(2420 B)- Format version
0x01- Context string
SIGNET/PQBLOCK/EXP0- Block key the nodes require
- SHA-256
eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad
Transactions
| txid | Inputs | Outputs | Amount | Fee |
|---|---|---|---|---|
| f39a11ba06cd…453fb5a1ec13 coinbase | 1 | 2 | 50 |