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

Block 18023

Hash
00000009f824115d3e594ff9100586667798329ff1f528f7984865e51f62ebba
Confirmations
24027
Time
2026-10-08 21:26:54 UTC
Median time
2026-10-08 21:18:33 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0040172004
Bits
1e00f8ed
Merkle root
22f9dc311a85a047f5117a248e8d4b95a10cf458f27b644b6e9477c97d104a1b
Previous block
000000adb07e2597581bddb3e79842420585930002d1d9486f50c97bbe87f403
Next block
000000ec25255392fbe54b29f397c0f6915c7563cd5dfe509bdae7922b6f375a

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 18023 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
e0d74e0e73dfb0b99667fc988648bc4a… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
22f9dc311a85…77c97d104a1b coinbase1250