Block 18721
- Hash
0000008c39f396155e96a841d24d83a4a7239979e582217b812fd27ef8260d4c- Confirmations
- 23355
- Time
- 2026-10-09 16:53:19 UTC
- Median time
- 2026-10-09 16:44:30 UTC
- Transactions
- 1
- Size
- 2,772
- Weight
- 10,980
- Difficulty
- 0.0035089589
- Bits
1e011cfb- Merkle root
a8b484a19c3268f424d34ae19c885db4b1366db6dd098433ec959064ea3c3ecc- Previous block
- 0000006fa21762ca0cc945e43172fca30632c27dbc48404893705a2b813ad776
- Next block
- 0000007c9ecd963037a4d94290434814e6218bdb2597b434c8134d119f7cd0b3
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 18721 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
c55dc545cd3b6b196188b425c24780e3…(2420 B)- Format version
0x01- Context string
SIGNET/PQBLOCK/EXP0- Block key the nodes require
- SHA-256
eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad
Transactions
| txid | Inputs | Outputs | Amount | Fee |
|---|---|---|---|---|
| a8b484a19c32…9064ea3c3ecc coinbase | 1 | 2 | 50 |