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

Block 821

Hash
0000014743e59501faa2e1798e7e2ec0dba9c3db09bb9997b0646aa02f977295
Confirmations
40829
Time
2026-09-15 23:20:07 UTC
Median time
2026-09-15 23:12:36 UTC
Transactions
1
Size
342
Weight
1,260
Difficulty
0.0011265153
Bits
1e0377ae
Merkle root
15b36f92b840453920350e7cad62259fb5fbef1ed8d8430c83ed756d2bd2d620
Previous block
0000022c6f79e7ac5dd2a1a64acee498002abe4d977c0ec8140ab23f5adb544e
Next block
0000034efa851c3373d50fcc2d70ed1275dbae54c046014d9dfb563508e464b4

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 821 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
15b36f92b840…756d2bd2d620 coinbase1250