Block 19556

Hash

0000000aca8641cd7ddc1224501207063d46cbf1a5559579793c04b5f31117c7

Confirmations

21104

Time

2026-10-10 16:16:58 UTC

Median time

2026-10-10 16:07:54 UTC

Transactions

1

Size

2,772

Weight

10,980

Difficulty

0.0035089589

Bits

1e011cfb

Merkle root

80387434c71217acef48b4fcd01bd5256fc2702d72b79bee6babcdd7c154f83a

Previous block

000000dd47d5e3e1229c901437276de2b8c622c9d6742143438e9e5ad73a30fc

Next block

000000ff4418faf486a4b3097d05e581f9a230bb306ee3c133e2a67eba16415b

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 19556 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

4cb9a4a3a865cf3deae52f652c61b59e… (2420 B)

Format version

0x01

Context string

SIGNET/PQBLOCK/EXP0

Block key the nodes require

SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions