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

Block 27741

Hash
0000001787322ddc75f4a742e6858a901eb6809df797f916dafff05bdb766348
Confirmations
12640
Time
2026-10-20 02:05:07 UTC
Median time
2026-10-20 01:56:46 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0023644668
Bits
1e01a6ec
Merkle root
9d512e60580a35bad9aae6a5c19403fee92ca340fe2429d779e64c5195315417
Previous block
0000006d8bf952e6665422b23bd547f8ba088cbdcba58dae49b0096694c8ec94
Next block
000000e294fe50ca1af0eff03742cc4511cbb408389acc21ca8ccbc678e98bc3

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 27741 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
834160f803cf122c2134a9fb1f9bafd8… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
9d512e60580a…4c5195315417 coinbase1250