Block 18921
- Hash
0000007ec99998357d766869bd85009a9e91ac3620e50bc3881a20bfcec8653c- Confirmations
- 22129
- Time
- 2026-10-09 22:25:49 UTC
- Median time
- 2026-10-09 22:17:41 UTC
- Transactions
- 1
- Size
- 2,772
- Weight
- 10,980
- Difficulty
- 0.0035089589
- Bits
1e011cfb- Merkle root
7dea3de801f89b3b8ddcfbe38c9b29513926989ae075003578a4ded2319cb11e- Previous block
- 0000008cec3f90e28b05c1b8d5fa3bc64fd3f9e3d0147c9b16f850c8d4fb6973
- Next block
- 0000004309b39f02cbe961b31583cbefad2c5a9c3f46daa358623d1fc1470b38
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 18921 is below the activation height 20000: nodes do not require this signature, and only log the result of checking it when run with -debug=validation. The block producer adds it from height 18000 on, so that nodes can check it before it is required.
- Status
- In the form M2 requires, followed by the signet solution push (the classical signature)
- Signature
fca1696cacd444ab0cd91684b4c33e36…(2420 B)- Format version
0x01- Context string
SIGNET/PQBLOCK/EXP0- Block key the nodes require
- SHA-256
eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad
Transactions
| txid | Inputs | Outputs | Amount | Fee |
|---|---|---|---|---|
| 7dea3de801f8…ded2319cb11e coinbase | 1 | 2 | 50 |