Block 19400

Hash

0000004e9aa4d3e5d45a5adcbd975954d7f0d5eeba85a5e3d45f48c9a6ea4a16

Confirmations

21775

Time

2026-10-10 11:56:05 UTC

Median time

2026-10-10 11:48:05 UTC

Transactions

1

Size

2,772

Weight

10,980

Difficulty

0.0035089589

Bits

1e011cfb

Merkle root

9ee50036e513bb9d732c2af8d26213f631f53e1643d177a4446104810d8a4563

Previous block

000000629332b38c286b1fc6fbe965b19ed6668fdb92b47446f0823f4243c97e

Next block

000000dc774d883fb530f2f0202c576d25f8cd2894ab41176c36843c27392056

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 19400 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

ced82e501a72176a3ca4fb78ce56e3f8… (2420 B)

Format version

0x01

Context string

SIGNET/PQBLOCK/EXP0

Block key the nodes require

SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions