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

Block 18097

Hash
0000006c61fe042b12bb244cac612ea1af3b3ccfe100e8a81b9cb2e8a575cc45
Confirmations
23909
Time
2026-10-08 23:31:13 UTC
Median time
2026-10-08 23:22:45 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0040172004
Bits
1e00f8ed
Merkle root
8261fc202e32462a24d155e9519a813d5ab6417be2fd9b89f0889811855604b4
Previous block
000000ef7240a7ca780dde1c474ab30fac7020a81fc4844aed032216561e57af
Next block
000000c9e52a4ac121634ecb8f9cc9db489ddeb6e355f17757dd628ff0aa32af

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 18097 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
3f3858379508e29ae4b5438cde70c245… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
8261fc202e32…9811855604b4 coinbase1250