Block 647
- Hash
000001677aa8c456ab787d985def2b6a35f0bc60b3377e0aa1566824a19cf67a- Confirmations
- 41206
- Time
- 2026-09-15 18:58:26 UTC
- Median time
- 2026-09-15 18:50:55 UTC
- Transactions
- 1
- Size
- 342
- Weight
- 1,260
- Difficulty
- 0.0011265153
- Bits
1e0377ae- Merkle root
ce367d0b3cce41d9bc52d02ac9cf515e7a7b1f5e71ea19599c5089ba54ac31c8- Previous block
- 0000013f75f6d1b84fa6fa2d34f56c37cd524e90394b8a2e6772c174747d1851
- Next block
- 00000279c52686ce244c8ebb0c07b05938a9f5f8d81c16893dc7eb11483f38b0
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 647 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
- No ML-DSA-44 block signature in this block
Transactions
| txid | Inputs | Outputs | Amount | Fee |
|---|---|---|---|---|
| ce367d0b3cce…89ba54ac31c8 coinbase | 1 | 2 | 50 |