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

Block 25301

Hash
0000002ff21ae0d0c8e0440e28d1c33bd9ac50b140e31ce0586df2cae135f481
Confirmations
15081
Time
2026-10-17 06:49:34 UTC
Median time
2026-10-17 06:41:06 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
786b344337c793c6b453dc493431c55fe25f85f73d5e908076a2b0ddccc81c26
Previous block
0000015749a6001406231f8dd906f6202a64bb777e4bd426db2e19640725b83e
Next block
00000041ab6e5866b18b34b1128dda9151e588ca9d84922f2a3202c73d79c22e

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 25301 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
e8303b624eceb55e1d3eceb87d54787a… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
786b344337c7…b0ddccc81c26 coinbase1250