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

Block 12990

Hash
000000ab006dfd42b77e92f512e4a6bec35fad853d62bba056ff05c3cfbda51e
Confirmations
29315
Time
2026-10-02 19:31:05 UTC
Median time
2026-10-02 19:22:49 UTC
Transactions
1
Size
342
Weight
1,260
Difficulty
0.0055294316
Bits
1e00b4d9
Merkle root
cbc20b2ccbdfead15761f63f1530189c98573e8d08b9fc9ce4ed1ebade5ec7a4
Previous block
000000545251247bf731239fdf96a564f2721bfe8b98f551b70ee9f5c8b8f170
Next block
000000359a9ebef06547aaefdc8655603e16e4bcd771311f43a2de79de40b821

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 12990 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
cbc20b2ccbdf…1ebade5ec7a4 coinbase1250