Block 18603

Hash

0000007e545a35d83091e3d4b8aac0db692820df0712c8c382adfa44d9795260

Confirmations

21754

Time

2026-10-09 13:38:15 UTC

Median time

2026-10-09 13:30:14 UTC

Transactions

1

Size

2,772

Weight

10,980

Difficulty

0.0035089589

Bits

1e011cfb

Merkle root

f628582bae2a22029dbdbf4da041f5f97cf6f6ce005e6b33717872c9b41f19d8

Previous block

000000782d43a3b7eb3e66e1fbc969ef915826b25d62d73f53ec244682f17c05

Next block

000000d7e9f131f8f937c7fd1c9ba798c20e1b66c495dbc856fa62eefe7d6c50

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 18603 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

a6bd6fbd6625c3427585865f85d8de12… (2420 B)

Format version

0x01

Context string

SIGNET/PQBLOCK/EXP0

Block key the nodes require

SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions