Block 18553

Hash

000000b4fa2bc6ce7535263ad5aabf88ec1e92214fc49c3ffd20c183f196aeef

Confirmations

21672

Time

2026-10-09 12:17:07 UTC

Median time

2026-10-09 12:08:45 UTC

Transactions

2

Size

3,046

Weight

11,665

Difficulty

0.0035089589

Bits

1e011cfb

Merkle root

cec3b8844d2be733baf66c0d338c35939e054a387cb923a4a7689c0e1a6f71a9

Previous block

000000a126484464a7d308ad505f45407a648c26ca4cc1243e58d63f1dd26d20

Next block

000000b38c4c34a3727dc6e9b115362f4624a78fd2426304aff1d6242605f7b4

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 18553 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

5d2793c771a9dd9978c7019986b6f9fd… (2420 B)

Format version

0x01

Context string

SIGNET/PQBLOCK/EXP0

Block key the nodes require

SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions