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

Block 25203

Hash
000000c262c2719f029c142e6b53d3e369f97b1381b24a459f4feaa7a7947658
Confirmations
15227
Time
2026-10-17 04:09:29 UTC
Median time
2026-10-17 04:01:24 UTC
Transactions
3
Size
3,196
Weight
12,061
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
1189ee3381f12b5905a9bc9bcf6afffbab8ba2548f67ed20e4544a533495bac6
Previous block
000000fe622264ef5287c1e6a84124d206eefb202a6b1eff40264f4f6a8f9076
Next block
0000011b8f2a945ad97fa7af70f800237293a980865dd7c5919f4f2388204d23

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 25203 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
32e9cd1a2c2e30ae49a4b06cb2319f39… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
d1e113cec031…d1f86a6e54a5 coinbase1250.0000148
9f682be150aa…52513d85aa4d spends P2MR110.00998830.0000117
7e432b556da4…1f903cf493ef pays to P2MR126.99986340.0000031