Block 639
- Hash
00000313649d8530d7684ee5a969f835654a079defe43bbbd20694c9c5fb03eb- Confirmations
- 40709
- Time
- 2026-09-15 18:46:24 UTC
- Median time
- 2026-09-15 18:38:53 UTC
- Transactions
- 1
- Size
- 342
- Weight
- 1,260
- Difficulty
- 0.0011265153
- Bits
1e0377ae- Merkle root
64247b099bc56fab93c1f399d7fb8e98706e371a9daf48cababc015ef60e749c- Previous block
- 0000009d50a6907668e1109317874101c1779b51e616c2e7618db42bd9e2b9be
- Next block
- 0000014b3763d833fb93366b8cdbc165aea571b776891764be7e50839365888c
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 639 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 |
|---|---|---|---|---|
| 64247b099bc5…015ef60e749c coinbase | 1 | 2 | 50 |