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

Block 18070

Hash
000000014aae6c1e277424db3a5ebd05b0ba0c15b00fdbad4c4373f780c36953
Confirmations
23994
Time
2026-10-08 22:46:09 UTC
Median time
2026-10-08 22:38:20 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0040172004
Bits
1e00f8ed
Merkle root
36122de03b0bbc7eb53de88143a773d312450b63c4493c8b564de142b0d71608
Previous block
0000009ab54cee0fe0cd98f1949c8c54be5243a9b4bfff68650dea0521c6dffa
Next block
000000d2f06365338efc2bc11ab912c324873fddcf7bfb22f21616b6aceb976b

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 18070 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
In the form M2 requires, followed by the signet solution push (the classical signature)
Signature
fb35d4dc4df83ec0d5b2e548cdc9383b… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
36122de03b0b…e142b0d71608 coinbase1250