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

Block 25142

Hash
000000d57ad6a468447007a8e909cec3f5c5e50b355acc7d917c957d1d154000
Confirmations
15043
Time
2026-10-17 02:30:08 UTC
Median time
2026-10-17 02:22:08 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
39e6e069786d7c7ef033630d191c21443e8829281528167756a227ef220c65a8
Previous block
0000015ef04f8e05e1be434c77dd5ea46f29e613ea095b78eba7d72ad21bfedf
Next block
0000005ab9ec74808177e4bc256fbfc46ec4be5e62d3b887e2e7226296ca5fb3

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 25142 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
dcf54bf7c53caff98721966dc41e9722… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
39e6e069786d…27ef220c65a8 coinbase1250