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

Block 25537

Hash
0000001473f600f712dd2a552ba7e013db9df13c08270910314ef0198629d172
Confirmations
16715
Time
2026-10-17 13:19:35 UTC
Median time
2026-10-17 13:11:07 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
d7367e31f2f32fe0057218bad84daafa0521d5c5e5da89a5131cb5c6b0d7cd35
Previous block
0000012b1622599957d24545c71e5bf16e0fdc34d4170dadad59a249b7834244
Next block
00000052812233e61c936e46a29434472637ad1f4827a783ac2f6a9db2a66f6b

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 25537 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
aabdd8b15730639a1f2554d18ed91552… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
d7367e31f2f3…b5c6b0d7cd35 coinbase1250