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

Block 18079

Hash
000000ec64e65a7639e3c9aca2f99077a9e4131f553e00db9a41425a8102b972
Confirmations
24110
Time
2026-10-08 23:01:17 UTC
Median time
2026-10-08 22:53:11 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0040172004
Bits
1e00f8ed
Merkle root
c861ac1b5f31f0c1a9f0f68105bab63126f7d5fab0bf986392ea67604db25b76
Previous block
0000007182f8c85cfff8250b9d69c74b4e4c34e43ab528ee551be9b2a56c667e
Next block
000000a28077c8548e500038f13f538b7049559a1fa27cd657682c8d60d160ac

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 18079 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
d908fa0e4904e1c0be7e440ed34048d9… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
c861ac1b5f31…67604db25b76 coinbase1250