Block 18637

Hash

0000002ca1384471e9b0bbb14798af1d8fd657a71058341ee864ecc2a269b0ef

Confirmations

22769

Time

2026-10-09 14:34:19 UTC

Median time

2026-10-09 14:26:34 UTC

Transactions

1

Size

2,772

Weight

10,980

Difficulty

0.0035089589

Bits

1e011cfb

Merkle root

41fe5d3ea1759e68fdca4d5c54f3552e50fe74fbdb12190e025ed0fdab64ba73

Previous block

000000fa2e1c324dc8987fb2495e7c38c33a694f00450c629a19109415cd7fdd

Next block

000000a5d13a7f0393692217c9a7d92b12ec3408f5fa12adca76b340b9ccf458

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 18637 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

7e1b6ce7e37d77eda71eeea06fa52707… (2420 B)

Format version

0x01

Context string

SIGNET/PQBLOCK/EXP0

Block key the nodes require

SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions