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

Block 4278

Hash
0000006180f02826f4681e375cdaab42e93ed3103f75499872b69fd35371a5b2
Confirmations
37829
Time
2026-09-19 18:52:15 UTC
Median time
2026-09-19 18:43:26 UTC
Transactions
1
Size
342
Weight
1,260
Difficulty
0.0045061008
Bits
1e00ddeb
Merkle root
021b347ff90a1a19fefac3c90a0b4871b5fdacd9425190dc0c870d905772299e
Previous block
00000057d48cbbc5bfa576dfac5d73f0e1f2a965d95efdde2b4a8a34a9156c9d
Next block
00000008bde4d1756c97632117e5098fe4c78cf027f9ae46121a6bff7d7f42a5

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 4278 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
021b347ff90a…0d905772299e coinbase1250