Block 18221

Hash

000000ce42d7870a59d1af6652e45051e93dc2bd9c3a34e083b146e34e4f330e

Confirmations

23907

Time

2026-10-09 03:00:43 UTC

Median time

2026-10-09 02:52:57 UTC

Transactions

1

Size

2,772

Weight

10,980

Difficulty

0.0035089589

Bits

1e011cfb

Merkle root

aa8f5a5ef6ca89b6708828a7ae68a7c2f04ae2d59ba35bd16304b425680a3229

Previous block

0000007bb7280374846ff65bd59af7e18b42dcade69f5c9ec54e1f406fa6eff8

Next block

00000050a56da95fcf31e65d1a59331db41c11e3fa47602a6872c4279e1a6687

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 18221 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

543e6d2976f50e4eb84475f11ef476bb… (2420 B)

Format version

0x01

Context string

SIGNET/PQBLOCK/EXP0

Block key the nodes require

SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions