Block 3997
- Hash
0000001c4c964bcaf4bc0bb3b51788fdfb0f3c51c67ce4b45f810e991a315f95- Confirmations
- 38269
- Time
- 2026-09-19 10:26:29 UTC
- Median time
- 2026-09-19 10:18:25 UTC
- Transactions
- 1
- Size
- 342
- Weight
- 1,260
- Difficulty
- 0.0011265153
- Bits
1e0377ae- Merkle root
ab517e55835e9d22448404ee0be086c8b28f8ce98f5f986499a7c5a2131bb5c0- Previous block
- 0000023a223dbe8928b72802c228f93fdb9b2cbae63dbb7a06bf568df6812744
- Next block
- 00000229136040607dbaef43206d74e8c1a1366267b597fd8bf067471a94ce16
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 3997 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 |
|---|---|---|---|---|
| ab517e55835e…c5a2131bb5c0 coinbase | 1 | 2 | 50 |