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

Block 25863

Hash
000000f11a783ceff37471f1d381b6aefcbe0e1ff6c4ae307d15603d4c923271
Confirmations
15328
Time
2026-10-17 22:09:30 UTC
Median time
2026-10-17 22:00:57 UTC
Transactions
2
Size
2,991
Weight
11,445
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
77fc14639136b763c43981cacae0f88c0e3847d0b2f855f7e8832cc22fddad74
Previous block
0000004519df265b07703554459a80ff3bc4a76e9b973dbc887a5220ee856e62
Next block
00000169e77a651ad63de7936261fb975aabfd04f5e70da66606fe33bc46404b

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 25863 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
0353c43a09ef4ab6f91824f5adb2b235… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
b54696bc751c…80ec8e14ea8a coinbase1250.0000117
41187ed1f131…055731a39150 spends P2MR110.00998830.0000117