Block 18993

Hash

0000000bb526320a6a5f0776ffd0c2a6c5fe84fb1b2f284da6ed96f741d1c079

Confirmations

21874

Time

2026-10-10 00:28:05 UTC

Median time

2026-10-10 00:19:22 UTC

Transactions

1

Size

2,772

Weight

10,980

Difficulty

0.0035089589

Bits

1e011cfb

Merkle root

f3f3af5c591a1ecd0a797c6e208b858f01d333bd791be876e829967428106abc

Previous block

0000008e91461f32bdb1bfdc35000e31056d4c524a799fc637706e5e79d0b208

Next block

0000001803f7768085400cd799872b77f11143290fda6053a9c3b82c5539cdb4

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 18993 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

af612784665ef0be010e72fd96ddc124… (2420 B)

Format version

0x01

Context string

SIGNET/PQBLOCK/EXP0

Block key the nodes require

SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions