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

Block 25543

Hash
000000e7344f0c4c4cd8bbe61826461516a7f3fc8db2530fe7f8c39fd3e26972
Confirmations
16733
Time
2026-10-17 13:29:19 UTC
Median time
2026-10-17 13:21:19 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
baa5990c2dc0fd862f23da46f5ff2a73da756626b5de3b65cbb9461a22b9bb8f
Previous block
00000064f7f6f77c1aafe67a080462e089abbb228fdc6b2ab9a67e8b440212ac
Next block
0000001a278fd729b11907efdd4c306c28248dfa3f6edf5ec4d3d49d8a55a014

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 25543 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
87c26c7b6e71734574e642370c2e4695… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
baa5990c2dc0…461a22b9bb8f coinbase1250