Block 18639

Hash

0000005f64c32011ba98fa3388b2ed6988adcc2394712b5484c5b0761e275a17

Confirmations

22946

Time

2026-10-09 14:37:45 UTC

Median time

2026-10-09 14:29:38 UTC

Transactions

1

Size

2,772

Weight

10,980

Difficulty

0.0035089589

Bits

1e011cfb

Merkle root

1e5de5a620fbe14dc55f46c80fd73f42433111eb373833ae86a9740b7796ab58

Previous block

000000a5d13a7f0393692217c9a7d92b12ec3408f5fa12adca76b340b9ccf458

Next block

0000006bfed6b08245bbf7dcf8725640bf107cb5342dc7185090182e36821e16

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 18639 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

f25048783788143f8f8bf3234d51765a… (2420 B)

Format version

0x01

Context string

SIGNET/PQBLOCK/EXP0

Block key the nodes require

SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions