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

Block 25416

Hash
0000015214058e82670626728c37e6390dc2a481cb8eaab144bc57721065ff9e
Confirmations
15210
Time
2026-10-17 09:58:18 UTC
Median time
2026-10-17 09:50:16 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
f1c31e81e85172866af5da70e3e859daee475fea5fd58a084cb9f26278df744f
Previous block
00000127455575afe191270691ae0465b2cadaf394901ef76b0d818d31a2faa0
Next block
000000f01b3c95fd5bed51ccbaf5eed83b8d8bf7457ec1ebb9bc98a82147cc6b

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 25416 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
3cec4c5ae70fab76b7bc664c2a8b84d3… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
f1c31e81e851…f26278df744f coinbase1250