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

Block 26253

Hash
000001891c6d37a2cb83b7d236083013b9203378e29aa92909420d37574840d3
Confirmations
15469
Time
2026-10-18 08:42:23 UTC
Median time
2026-10-18 08:34:28 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0023644668
Bits
1e01a6ec
Merkle root
f70c7118b10fe5a3544c5b39a012483b764b79f4a9ecec8e46807e42962df88f
Previous block
000001648fc729178f397237d5504102c54c4e276565de67e18049181416820b
Next block
000001a4040d52a976d754d253afc9c28985c7c552bf1a8a8fa427dc93ea3d96

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 26253 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
ac700df4a58729563db53c50e811eb7b… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
f70c7118b10f…7e42962df88f coinbase1250