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

Block 13840

Hash
000000a42fa621e296252ee351b3cd9278883fd968f01728b54de8b4e4649cc9
Confirmations
28312
Time
2026-10-03 20:40:12 UTC
Median time
2026-10-03 20:31:57 UTC
Transactions
1
Size
342
Weight
1,260
Difficulty
0.0055294316
Bits
1e00b4d9
Merkle root
87bb1966b51e518be74c95a16a1961cc186197acef22033b75dc26dc2c535726
Previous block
0000006540a2cb0f835e31842c62e8aaead9851baf4b99cd21515c1f4e20ad08
Next block
0000008610733401249a934a302fec8d21379a62e8d50e94643c6d20e5d26390

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 13840 is below the activation height 20000: nodes do not require this signature, and only log the result of checking it when run with -debug=validation. The block producer adds it from height 18000 on, so that nodes can check it before it is required.

Status
No ML-DSA-44 block signature in this block

Transactions

txidInputsOutputsAmountFee
87bb1966b51e…26dc2c535726 coinbase1250