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

Block 18008

Hash
000000514166517524079c1c98650c7f0630a13b5b74078aeab0125f54b1ceed
Confirmations
24271
Time
2026-10-08 21:01:24 UTC
Median time
2026-10-08 20:53:10 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0040172004
Bits
1e00f8ed
Merkle root
f3b1a83462e02fbae12b2bf2dfc3ba6ccb6df4cca2f5e7702eb71f85328ea02f
Previous block
000000ba2fddddc5ad6fa0521a4d5e7e7668fa8a9676689e831b525f3b590769
Next block
000000e36a6feea04cb90a86ec3be03d1149b00f5e2bc8715455d7a9a5a72955

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 18008 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
f0356b003b13da109a54f9f5b3aa23b9… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
f3b1a83462e0…1f85328ea02f coinbase1250