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

Block 25665

Hash
000001533d17f8dcec62ee534d7fdf2684d2fdd6d5619e5ef8939356891e4b53
Confirmations
16026
Time
2026-10-17 16:48:15 UTC
Median time
2026-10-17 16:40:34 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0025748176
Bits
1e01845f
Merkle root
478fb9b84b3656a5953f2300dddda5db5a328961b9be85fa5599666d3862e3bb
Previous block
0000006449f7d9e4467752a09486ad852d9ca7b48fce57b31a37c40a06d1fd26
Next block
000000cfbfff069932ce183fff16bd786ddd6c085f8230a83e0c814d55bacd9b

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 25665 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
bf1440ef22525c3fd7e963c962704fde… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
478fb9b84b36…666d3862e3bb coinbase1250