Block 19987

Hash

000000f4da7acda67c3acdc89eefdb1d4305b897d9c525e637a53310da2fa99b

Confirmations

20991

Time

2026-10-11 04:18:34 UTC

Median time

2026-10-11 04:10:13 UTC

Transactions

1

Size

2,772

Weight

10,980

Difficulty

0.0035089589

Bits

1e011cfb

Merkle root

66790b35ab2c46b29f439c067e826200c7fbaf254b89e007bcce731b22eb9d4d

Previous block

00000083e2fbb2ea19afb8b9d34aa1d3c71f41e9f0e7e1772852b3f0e09f4dad

Next block

0000002fb686fb3f8e57306af6965527d6a707ab80548070140a3a67b482d5b7

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 19987 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

11bdf1d694173985059ecae9b8f7520b… (2420 B)

Format version

0x01

Context string

SIGNET/PQBLOCK/EXP0

Block key the nodes require

SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions