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

Block 18024

Hash
000000ec25255392fbe54b29f397c0f6915c7563cd5dfe509bdae7922b6f375a
Confirmations
23892
Time
2026-10-08 21:28:25 UTC
Median time
2026-10-08 21:20:20 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0040172004
Bits
1e00f8ed
Merkle root
0ce320fbdd4b0f4d74f51196c8acafc857e9002fd9c11ae86ced2e5851ea6a78
Previous block
00000009f824115d3e594ff9100586667798329ff1f528f7984865e51f62ebba
Next block
000000aa08117229fa9fa6c5abde968f74f43c6e9d27e7559c63ec56d02f4213

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 18024 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
7a77322f657a75df905f2e50ff243746… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
0ce320fbdd4b…2e5851ea6a78 coinbase1250