Block 19643
- Hash
0000005902a99d18f16b44cf34cd18795a232f97e2b8b11480386242ac0077a6- Confirmations
- 22633
- Time
- 2026-10-10 18:44:21 UTC
- Median time
- 2026-10-10 18:36:15 UTC
- Transactions
- 1
- Size
- 2,772
- Weight
- 10,980
- Difficulty
- 0.0035089589
- Bits
1e011cfb- Merkle root
2e37f434782e523958855d7376a38deb9eb51c54845e0d63c84b079cce7d8ebf- Previous block
- 000000ec991d6bc1fbe561aaedc77291f49a97bd76a5b76f99bab7f7f7f3136e
- Next block
- 000000d50a1139dfe598509d30ce3a96813e3be9d6e6c118d7d5cc84f92d4153
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 19643 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
19ea49993e9e2f5cea47dd13b87fd841…(2420 B)- Format version
0x01- Context string
SIGNET/PQBLOCK/EXP0- Block key the nodes require
- SHA-256
eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad
Transactions
| txid | Inputs | Outputs | Amount | Fee |
|---|---|---|---|---|
| 2e37f434782e…079cce7d8ebf coinbase | 1 | 2 | 50 |