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

Block 4521

Hash
00000031ab585301e1513198b667159c99807bb8f644975946276965884a9a09
Confirmations
37892
Time
2026-09-20 02:19:38 UTC
Median time
2026-09-20 02:11:06 UTC
Transactions
1
Size
342
Weight
1,260
Difficulty
0.0045061008
Bits
1e00ddeb
Merkle root
45b7c241ec669f05a8d5a2f425e2011bec2768b96948fc4555f28dcb28d38301
Previous block
000000b7b341ec3464cd09a2270fecb00d2683eacfe2c3ad48db0a18a865c2fa
Next block
000000c9111220d17e669abfb4b9c396679d0edc8a748f57f57d73fc13da6ab4

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 4521 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
45b7c241ec66…8dcb28d38301 coinbase1250