Block 19139

Hash

00000021f59e531b7f8e85b8da48c51f3b7d61f1ca6a5caa1abe7e086c04d9be

Confirmations

22477

Time

2026-10-10 04:38:05 UTC

Median time

2026-10-10 04:30:09 UTC

Transactions

1

Size

2,772

Weight

10,980

Difficulty

0.0035089589

Bits

1e011cfb

Merkle root

921c717022d39b6d6888e294fbec1ffaaae760f05b2f870e928d897d6178f1f0

Previous block

00000018ff5278eea0151878b41c7a5840eb121e5bb5fc1e46456f26516787a2

Next block

0000003a98974b59d5e2964d87079f374e7ce533bd7be3bef751146cf32367b5

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 19139 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

8e8c40817b9437bd1a93a75da7164b7c… (2420 B)

Format version

0x01

Context string

SIGNET/PQBLOCK/EXP0

Block key the nodes require

SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions