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

Block 25201

Hash
0000001dbeba68e58b46c4a02d375ee98737ffff9bef6ab0de111da2ef7472a5
Confirmations
15422
Time
2026-10-17 04:06:14 UTC
Median time
2026-10-17 03:58:20 UTC
Transactions
2
Size
2,977
Weight
11,596
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
77dfa34dc322bc5a6b768ad8dd75283954de77b19eb0710ab708cb1f63351ce2
Previous block
000001735842ce33c33f2dd43cb2dd3bd7f96b8d3d4a4fdfb803b2a88da52c08
Next block
000000fe622264ef5287c1e6a84124d206eefb202a6b1eff40264f4f6a8f9076

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 25201 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
1cf899269fd9f3c621baf9f8fe875f09… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
36cd2e9f5cbc…882dac006016 coinbase1250.0000031
799caf6f135b…85ecc8e22f66 pays to P2MR128.99986960.0000031