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

Block 25103

Hash
00000051e5ad5c462c04fd76a297db97981392018c3e4c3ee6f91b6c4ff84060
Confirmations
15176
Time
2026-10-17 01:27:10 UTC
Median time
2026-10-17 01:18:55 UTC
Transactions
2
Size
2,977
Weight
11,596
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
763c57afe002c448fd38a826f84ae152616e36b2de459bbef19535d2fbdd95d4
Previous block
0000010aa294f78208b057f8ddaeff861b7bf02a17eff346f93850656f4a5e19
Next block
0000003c2f878bf10e74ea2e9455434ecb11cf2d01380698d4ccc7ed91861a4c

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 25103 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
cda4ba91d06fb36f8a17dd59e922b47e… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
56e9cf221c39…59cd86810f20 coinbase1250.0000031
ccc327e012be…52b936d56eee pays to P2MR124.99985720.0000031