Block 18581

Hash

000000c1691149597f443b0bc78069e35be64eb3a008d3b2f7012c4bbff582dc

Confirmations

22341

Time

2026-10-09 13:03:21 UTC

Median time

2026-10-09 12:55:26 UTC

Transactions

1

Size

2,772

Weight

10,980

Difficulty

0.0035089589

Bits

1e011cfb

Merkle root

a36724096043181ae9ec7ef33657b32570960cc2ade24cec958754ff5ef71ffb

Previous block

000000a525e743693d02b42c2d3977ff8d869715dd47536ff5ccf6fb3ef886d0

Next block

0000002eb3c2e4029f79588f896323e21123a3a94984c759076318386e7aac9f

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 18581 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

339cf5a96c2c815ac240b16c777c8112… (2420 B)

Format version

0x01

Context string

SIGNET/PQBLOCK/EXP0

Block key the nodes require

SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions