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

Block 18133

Hash
0000003ae960dfa6ece596407ca519356797d39876651a3b690aff29eb2ec2d2
Confirmations
23970
Time
2026-10-09 00:33:07 UTC
Median time
2026-10-09 00:23:58 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0040172004
Bits
1e00f8ed
Merkle root
d03c2f6f51eb98763fa66ef81f72557bcd2b76b16e2a07dfaab77d0e76e2cd99
Previous block
000000a1f2b9858704032fb237dd9bec11e4e40325e953d55057c5d93faddc58
Next block
000000b2cb903eaf6f09ebd67df030dd68da5d1bdd31ea9a28df8cdcb7e5d615

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 18133 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
4075931e68bbe60fc92f34a526bb1fe2… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
d03c2f6f51eb…7d0e76e2cd99 coinbase1250