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

Block 18714

Hash
00000068274cb9a2872647d32b48b95e1d56b072fceb99a3173098cc67306a94
Confirmations
23204
Time
2026-10-09 16:41:27 UTC
Median time
2026-10-09 16:33:08 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
cf599d01b679a3f7e50cf9bb793657d4f7b1d90a4fbc66b9a56bb57d4fd8b6bf
Previous block
000000d54c6c5fa15ceb618a988dfc6eced9326ae1b9f36e652e2a7d936d1dc9
Next block
0000008e29df8268a832d4e27e65453c3440cfaf0a54c4c31c5ba79b1f953d14

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 18714 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
3f389ac33f038f45606303c592a9664e… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
cf599d01b679…b57d4fd8b6bf coinbase1250