Block 18638

Hash

000000a5d13a7f0393692217c9a7d92b12ec3408f5fa12adca76b340b9ccf458

Confirmations

22860

Time

2026-10-09 14:35:51 UTC

Median time

2026-10-09 14:28:06 UTC

Transactions

1

Size

2,772

Weight

10,980

Difficulty

0.0035089589

Bits

1e011cfb

Merkle root

9fb3e8eaebe387b1be0375e07ac809826f8a55e8dfdf17c63c1e4db66d33b186

Previous block

0000002ca1384471e9b0bbb14798af1d8fd657a71058341ee864ecc2a269b0ef

Next block

0000005f64c32011ba98fa3388b2ed6988adcc2394712b5484c5b0761e275a17

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 18638 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

ed3ea78a51a73bef237622d6b7a80aa5… (2420 B)

Format version

0x01

Context string

SIGNET/PQBLOCK/EXP0

Block key the nodes require

SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions