Block 19688
- Hash
000000a02c58ba796afc0c7a496a1aaf1c57fdcaac34bf9073895216305d7930- Confirmations
- 22503
- Time
- 2026-10-10 20:00:18 UTC
- Median time
- 2026-10-10 19:52:14 UTC
- Transactions
- 1
- Size
- 2,772
- Weight
- 10,980
- Difficulty
- 0.0035089589
- Bits
1e011cfb- Merkle root
54867f40bef7f875243ebf9f13e2967341398e5f55f19cc250edd7c440dbd5d5- Previous block
- 0000003a7af11637c50613bb4b70addb3ca71e539101ee31f47d9800e6cc348c
- Next block
- 0000011abc7206245988cfa6956ee46314eef24d22dae7f9b5b6438ba5dd3de9
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 19688 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
f95d87cb8cf87c7cfa074bf4e6309ce7…(2420 B)- Format version
0x01- Context string
SIGNET/PQBLOCK/EXP0- Block key the nodes require
- SHA-256
eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad
Transactions
| txid | Inputs | Outputs | Amount | Fee |
|---|---|---|---|---|
| 54867f40bef7…d7c440dbd5d5 coinbase | 1 | 2 | 50 |