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

Block 25544

Hash
0000001a278fd729b11907efdd4c306c28248dfa3f6edf5ec4d3d49d8a55a014
Confirmations
16737
Time
2026-10-17 13:30:52 UTC
Median time
2026-10-17 13:22:51 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
e71d5c329b99edb74a2da21a2d4411f4684f617cbf6b214fe0576c0cc1e004f7
Previous block
000000e7344f0c4c4cd8bbe61826461516a7f3fc8db2530fe7f8c39fd3e26972
Next block
0000013ad138b734401c132a89837b7a9366c624746592d782ed2036ad5efd22

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 25544 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
a3fe3d4dcc7d61840ae00f870bc783b1… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
e71d5c329b99…6c0cc1e004f7 coinbase1250