Block 21437
- Hash
000000ff53c8d640f45c304b4a25d55f078aa8623e9a3fc9bd49b4e89aa375e6- Confirmations
- 20600
- Time
- 2026-10-12 20:34:03 UTC
- Median time
- 2026-10-12 20:25:24 UTC
- Transactions
- 1
- Size
- 2,772
- Weight
- 10,980
- Difficulty
- 0.0031405554
- Bits
1e013e69- Merkle root
fcdac1fbf46b6f0460b334411ac3c3f555db1d0e82f4228ab515ef3de1ed891d- Previous block
- 000001150f2ffa439fe32d3e35e676f4f7f96b4e9b736c9a82a64792d3ff8baa
- Next block
- 00000121d1c97f8f40c56524e9d70b16ce9a15d8101616739078162913e7d911
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 21437 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
2106a56144ea26608b16102e3b24c9e7…(2420 B)- Format version
0x01- Context string
SIGNET/PQBLOCK/EXP0- Block key the nodes require
- SHA-256
eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad
Transactions
| txid | Inputs | Outputs | Amount | Fee |
|---|---|---|---|---|
| fcdac1fbf46b…ef3de1ed891d coinbase | 1 | 2 | 50 |