Block 19397

Hash

0000000f153b5d87dac8cf85646122055b7f9c85907c94bb3f228a1c68b903a6

Confirmations

21924

Time

2026-10-10 11:51:19 UTC

Median time

2026-10-10 11:43:06 UTC

Transactions

1

Size

2,772

Weight

10,980

Difficulty

0.0035089589

Bits

1e011cfb

Merkle root

41982359406ffb76212df16c571deba22486b1c0d4e86e3093d29e6e5dcb81d0

Previous block

00000087f2a3c502fc594c7de7432c1a4ca13bc8fc057740404aac0a8962e9e2

Next block

000001130e61149246b29c62b2ec2c6efa5d240f36ce8ea15fde4ffe6232e678

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 19397 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

20ef2b9b515cd1a63c35c2d01d9bd5a7… (2420 B)

Format version

0x01

Context string

SIGNET/PQBLOCK/EXP0

Block key the nodes require

SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions