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

Block 16821

Hash
0000001215adb02d58d36129808debbf1964b7c792f461d06ac043b9c6967bc3
Confirmations
23917
Time
2026-10-07 11:05:43 UTC
Median time
2026-10-07 10:57:47 UTC
Transactions
1
Size
342
Weight
1,260
Difficulty
0.0040172004
Bits
1e00f8ed
Merkle root
918aca977e74f5ed84c7c5ecfc12423ec7eba42cbf366f41dac40c1b059ad94f
Previous block
0000008c2ac553e524d399afc18b37980639355b16d96a7f2beb07d3c12ceef0
Next block
00000051ffeb59ef1def0bffbf2b254fda44ffe2da20c8063d52bdbe8d2ff2b3

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 16821 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
918aca977e74…0c1b059ad94f coinbase1250