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

Block 25258

Hash
0000007237f59c7dc9acafa6a11f9e4482421d7147c22dbe0840105a2b3d6ee8
Confirmations
16893
Time
2026-10-17 05:39:54 UTC
Median time
2026-10-17 05:31:37 UTC
Transactions
1
Size
2,771
Weight
10,976
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
3c79483c021759c6b15f244d48636aa8f6fff98b99ba957ecbe0f9c9a0c2d248
Previous block
0000000e0c5a44b75c38f403b7018ff46a11f3b9172d9a61945e8932c6a0bcfe
Next block
000001016a1a68f2220356af4a7af975859850574fd5e1dab509daa8fb90b0b7

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 25258 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
bc5d14d0212cf7e10730ce42ceff525b… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
3c79483c0217…f9c9a0c2d248 coinbase1250