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

Block 25686

Hash
000000d28e016ac05151aba22d5c673567a861afb989ff9acb25e645874ce936
Confirmations
16488
Time
2026-10-17 17:22:46 UTC
Median time
2026-10-17 17:14:21 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
1483e49bc7fce51e7b3f50802b8c925fd5716b8e790e56bde20defac7c7be503
Previous block
0000002e2a4fc8bf209a27fc36768eee3518a39cbce81a45031e96e45a0a0ff2
Next block
000000106d3249d226a7bbd8e0c441114e6e32b5465e541421632193bccf77db

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 25686 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
f90a418814ee215d203b889523e32a9d… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
1483e49bc7fc…efac7c7be503 coinbase1250