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

Block 18074

Hash
0000008296212b868d9f8d0dd6308a328818dadb973be09cca2e8c2a3ade8f26
Confirmations
24033
Time
2026-10-08 22:53:11 UTC
Median time
2026-10-08 22:44:33 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0040172004
Bits
1e00f8ed
Merkle root
43bc22ad9264ec333f97b3f07f99d547eb7d5bc50dcb2cead5c5f1734aeb73ad
Previous block
00000068168cd6493cf2fdc8aebfb929438e29443b6dabf093031d74a042bff9
Next block
00000055fd80954256281679f992b350a19f75767e2bf8d48f3a31f11585bb21

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 18074 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
fda3ea7496813bdae8e0c9b012397936… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
43bc22ad9264…f1734aeb73ad coinbase1250