Block 18555

Hash

000000fa34e07c7d9dc65f8a1db1866f7c09cc145ae123f21621d1b7c57219fc

Confirmations

21511

Time

2026-10-09 12:20:23 UTC

Median time

2026-10-09 12:12:09 UTC

Transactions

3

Size

6,911

Weight

15,941

Difficulty

0.0035089589

Bits

1e011cfb

Merkle root

c52b450046c69ddb9269230b37eadde4c7e86623f9300bbcdf73520dabb0a6bc

Previous block

000000b38c4c34a3727dc6e9b115362f4624a78fd2426304aff1d6242605f7b4

Next block

00000004d7222268b0dc1181877080a65798f53c28590cb41128830f491b5c4c

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 18555 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

a903259f22319f2ae9b5b1c354d80ce1… (2420 B)

Format version

0x01

Context string

SIGNET/PQBLOCK/EXP0

Block key the nodes require

SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions