Block 19721

Hash

0000001bf0ca5fc58d168f1fa2ac2884ce370a1c0600ae686eac5ea4d8e49de8

Confirmations

22070

Time

2026-10-10 20:56:00 UTC

Median time

2026-10-10 20:47:39 UTC

Transactions

1

Size

2,772

Weight

10,980

Difficulty

0.0035089589

Bits

1e011cfb

Merkle root

8c0263dcb4bccadf697827556d214f1ca507b758816dfba7c1356677ed216b1d

Previous block

0000010f7b477c7699eb2a81dbd50c0da5ab35f55359b835389b5e27e7841912

Next block

0000010cf8189302e6e36bbf3a835257dbb2ef912f5b413220fded46978e0cc6

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 19721 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

15d266f33c2a898c12fce89c8f848b87… (2420 B)

Format version

0x01

Context string

SIGNET/PQBLOCK/EXP0

Block key the nodes require

SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions