Ark-0
Ark-0 is a test network for trying things out. It may be reset at any time.

Block 21413

Hash
0000007a2dc8463478764ff731053707eb5b3aeb0486fc4c3fe0d5169203a291
Confirmations
20694
Time
2026-10-12 19:53:29 UTC
Median time
2026-10-12 19:45:34 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
9c06cb1782381d6e2ff89410f5ab63bf821ea2dfed947d666ee17b7a74c8660e
Previous block
000000219ae685c09d5bb3c428dce73ce770753eb392389d059ecba84d3472a9
Next block
000000876c808cfaad2d50afcf47d374aa0f6ef74764818563c43a0ed5aa8346

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 21413 is at or above the activation height 20000: nodes that enforce M2 accept a block there only with a valid ML-DSA-44 block signature.

The node behind this site enforces M2 and holds this block, so its block signature passed the node's check.

Status
In the form M2 requires, followed by the signet solution push (the classical signature)
Signature
9229051c764c57c373cf053e154ea61f… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
9c06cb178238…7b7a74c8660e coinbase1250