Block 19439

Hash

0000003172ca00bcff3093067bd2f5c1c75bf04bd3f265ee3bc6fc0a46cdec06

Confirmations

21785

Time

2026-10-10 13:02:13 UTC

Median time

2026-10-10 12:53:01 UTC

Transactions

1

Size

2,772

Weight

10,980

Difficulty

0.0035089589

Bits

1e011cfb

Merkle root

f3facd4477ced0d168085c87a497902bfbdd7432372441325f84831170898410

Previous block

00000111d0a5d77c5a072b9ae90abb6782e5ee488a3ac71f0936a79efebd25f6

Next block

00000094715c6078f5dc53a749e8b66091365efb498df84f127d7f96762180f8

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 19439 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

0d3f84e0798488c709b037dcc2ea7912… (2420 B)

Format version

0x01

Context string

SIGNET/PQBLOCK/EXP0

Block key the nodes require

SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions