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

Block 21452

Hash
0000003894a1e9d9c570f600998881f4feadcbcdfa0b317a5ac7ced45c72a7d0
Confirmations
20427
Time
2026-10-12 20:58:45 UTC
Median time
2026-10-12 20:50:25 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
477339733a9c72c6c4025df58a6e3ba37c790b56290df5f01f349700248e3619
Previous block
000000fa40e2d736b18a7a96d622d079300b7a4c0eeea93cf6872e489da07bd4
Next block
000000d3748afcceebb0650488680c8cda079085f7f5473e03ab91bd17408684

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 21452 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
1d12bb39faafa7d9e70bc606c0f4412a… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
477339733a9c…9700248e3619 coinbase1250