Block 19687

Hash

0000003a7af11637c50613bb4b70addb3ca71e539101ee31f47d9800e6cc348c

Confirmations

22417

Time

2026-10-10 19:58:43 UTC

Median time

2026-10-10 19:50:26 UTC

Transactions

1

Size

2,772

Weight

10,980

Difficulty

0.0035089589

Bits

1e011cfb

Merkle root

9fd7efeca5c335d2cbcf565c58bb72d7f98ff94645cd2c91791c40902d625f57

Previous block

00000045479f7744d76d02f1ffdde8d2e1788e6c34f2cfae7c0f19ed81c8701d

Next block

000000a02c58ba796afc0c7a496a1aaf1c57fdcaac34bf9073895216305d7930

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 19687 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

1c4129e94d2c827281c3823d63bae545… (2420 B)

Format version

0x01

Context string

SIGNET/PQBLOCK/EXP0

Block key the nodes require

SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions