Block 19457
- Hash
000000c367c3dd1ddfe23cea6427766f4cf89dc1c526a99912fce125a4b605cf- Confirmations
- 21343
- Time
- 2026-10-10 13:31:29 UTC
- Median time
- 2026-10-10 13:23:13 UTC
- Transactions
- 2
- Size
- 10,499
- Weight
- 19,112
- Difficulty
- 0.0035089589
- Bits
1e011cfb- Merkle root
25358ce46f8e48f286ebee18ba1f3d6b27c995983bb1ee1ea84c4e00d19a396b- Previous block
- 000000709c5057a925ee244a27b19c92b17b71e23eb7405092dcc5ffe7cb9ca5
- Next block
- 000000b432e13cf9bd5ff863b9b2f8b47a2c111d80c4eb31f43e371aea5bfaf3
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 19457 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
c93732c82cf4ac7c8bde288bd52cd0aa…(2420 B)- Format version
0x01- Context string
SIGNET/PQBLOCK/EXP0- Block key the nodes require
- SHA-256
eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad
Transactions
| txid | Inputs | Outputs | Amount | Fee |
|---|---|---|---|---|
| 5db0c6f2d433…978d8058dff0 coinbase | 1 | 2 | 50.00004066 | |
| e3165a2ca3f0…1348bdbad5ba spends P2MR pays to P2MR | 2 | 1 | 19.99955428 | 0.00004066 |