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

Block 25439

Hash
00000119f9416c7358c16aad09101da3cb27a71909e846c82ae5b9ec1912fb71
Confirmations
16333
Time
2026-10-17 10:36:59 UTC
Median time
2026-10-17 10:28:42 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
a60c26ebaf6b7c301c490880e76bd806c11d012d994872b96de211bfc3990aa5
Previous block
00000144b49d5b2cff69f1ace5727efb47874ca66083678708bbdb3c30cb8ecc
Next block
0000011bbc7da6f297ea1f80ec75a728ee112fb959ca804ba7445cf106e4b95d

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 25439 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
a15f22c51a687898f89a226ff2cabda6… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
a60c26ebaf6b…11bfc3990aa5 coinbase1250