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

Block 25778

Hash
000000d13b9df97b8a0962ab8a4591a5e2fc282cde1e4ef0fd83ee83d99f080b
Confirmations
16758
Time
2026-10-17 19:51:12 UTC
Median time
2026-10-17 19:42:52 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
fbf2e4067bccb91d4f4c4d7b377664eef4cb894da29f855b8579646a9591f4ab
Previous block
000000a2b941e8b50b380c514a83880d80bfec5be557ebde442105517af60e97
Next block
0000013ee7b4bf8cb0aa5979f7b361b353ca87e40863233c3509f83cc103938c

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 25778 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
a02cc16d9382d2e3ce8ca093d2a911c8… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
fbf2e4067bcc…646a9591f4ab coinbase1250