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

Block 18956

Hash
000000ccff7ee8e2c9ed27ecbdc991ca2602aaf753c811abd4ca4959b2f721af
Confirmations
22593
Time
2026-10-09 23:24:07 UTC
Median time
2026-10-09 23:15:48 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
067649056cb8f3546f904c3e9e9c5ba54c44d136b61e051a985d78d4769db954
Previous block
000000268556ed7e904dc15e50f804fa2953582a813a847c91050f248b344a09
Next block
0000007c3230de434fd70cbfd0c7fdd18dd5242a4adabace22524a4470d64541

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 18956 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
8023b919040241ebe0be71dfdfbf66a2… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
067649056cb8…78d4769db954 coinbase1250