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

Block 25399

Hash
0000017113540ee481ac903d2173d51ff372732f9971ba2be6a62d6191cf19ba
Confirmations
15474
Time
2026-10-17 09:30:51 UTC
Median time
2026-10-17 09:22:29 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
cea6e54a8056e5e281bdc4677e4dba1d760c0679ab47d73d7b351b0fedc3a5f1
Previous block
0000000204d3ee246c09cb87e81dbecec5a2a72601e5d9d014bc3f251257fa10
Next block
0000002a363ef85ba379e98e0ab5e174b2eddf00ef988e6264a230ab3892b161

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 25399 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
8ce050466efcd0c223f1f7a94fade064… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
cea6e54a8056…1b0fedc3a5f1 coinbase1250