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

Block 5137

Hash
000000dd1822d1a690d9465c760b3e82adf665f2020acf98515d4eabed6b95e1
Confirmations
36978
Time
2026-09-20 21:11:42 UTC
Median time
2026-09-20 21:01:31 UTC
Transactions
1
Size
342
Weight
1,260
Difficulty
0.0045061008
Bits
1e00ddeb
Merkle root
ca400b07238a580190e71e1539ab6a7d9651de578902192975f38c8a8969b6ba
Previous block
0000009f27a4d5552304fa7e7656343f02ff8877de6a4d7c170379b0ccd74dca
Next block
00000050c0fcf0bd650f44de1731e004d2a21e03588e62abc58169c6e4664bc1

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 5137 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
ca400b07238a…8c8a8969b6ba coinbase1250