Block 18640

Hash

0000006bfed6b08245bbf7dcf8725640bf107cb5342dc7185090182e36821e16

Confirmations

22882

Time

2026-10-09 14:39:16 UTC

Median time

2026-10-09 14:31:09 UTC

Transactions

1

Size

2,772

Weight

10,980

Difficulty

0.0035089589

Bits

1e011cfb

Merkle root

85afa24022dadf104e2cffda0789205f25c4f2bac6847e57da8f71c12857638b

Previous block

0000005f64c32011ba98fa3388b2ed6988adcc2394712b5484c5b0761e275a17

Next block

000000454a5c2219eca9f36082723ab47e3af4edede4d4ba6e36ed1302970cd6

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 18640 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

00882882ac32d8d8c81dc1a6f51e7d4a… (2420 B)

Format version

0x01

Context string

SIGNET/PQBLOCK/EXP0

Block key the nodes require

SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions