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

Block 5647

Hash
000000ddb7ad20369ba2f3dba64ef81e6d224de2684ff892f4c9db5d0cb2fc91
Confirmations
36449
Time
2026-09-21 16:13:11 UTC
Median time
2026-09-21 16:03:32 UTC
Transactions
1
Size
342
Weight
1,260
Difficulty
0.0045061008
Bits
1e00ddeb
Merkle root
51d22ebb108fd7f38ee01e78410121d253365c5587e84010c71ace18ced1e934
Previous block
00000014e47f278a0615f0b6b8a094d795b9794110f06d1996f319e698c13c9f
Next block
000000561ae8c2740dd61cafb3c04e4f0dddf494cc77c1d8050d7e991c5a8ab5

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 5647 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
51d22ebb108f…ce18ced1e934 coinbase1250