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

Block 19309

Hash
0000010ad714c55fc7e34d170f92b582518c529e478355ced1e7fb14a2dc30b3
Confirmations
21560
Time
2026-10-10 09:23:16 UTC
Median time
2026-10-10 09:15:25 UTC
Transactions
2
Size
2,977
Weight
11,596
Difficulty
0.0035089589
Bits
1e011cfb
Merkle root
a17ec99bf363766391269e20f91bd3a018cb101a89ed1a694d78f0964ffc3e7b
Previous block
000001168f587148af6ebc6c048685d3d4f8b6a76f9ae6c6d2562c62c7afa775
Next block
00000002171e79bb413ae8611f356cb35de995347678f3884042437ac0ba6d1c

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 19309 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
d00f7930b33d9b78ce7bdd578116263c… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
3dd7915669e2…b4c2af493fc7 coinbase1250.0000031
2123d20c28d3…5bfe7a1f24ce pays to P2MR125.99986030.0000031