Block 19978

Hash

0000009aa8182429dfb769a3297eddb8d822d10d6d3712df694b53f00fd64b29

Confirmations

21004

Time

2026-10-11 04:03:34 UTC

Median time

2026-10-11 03:54:49 UTC

Transactions

1

Size

2,772

Weight

10,980

Difficulty

0.0035089589

Bits

1e011cfb

Merkle root

9d9e389f28b89a317aaa2449c99eb54050868f9a0ab646c5f12acea189c55a52

Previous block

000000ff6a024c339817b14cb26a9ac595d07b8a9e0054dc5d59f58f77ec72cd

Next block

0000006b48cdb7bf8e39238ccd8e9bc8ebd1fa0581c060a59868143c223fb0bc

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 19978 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

9c040f38866f68e28dc8f435e126c8b6… (2420 B)

Format version

0x01

Context string

SIGNET/PQBLOCK/EXP0

Block key the nodes require

SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions