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

Block 40224

Hash
00000180691f4deb9d7a61c3a47b69d4a4221223b84f7715ef88af66cb2c449e
Confirmations
7655
Time
2026-11-03 00:21:22 UTC
Median time
2026-11-03 00:13:26 UTC
Transactions
2
Size
2,978
Weight
11,600
Difficulty
0.0015097403
Bits
1e02965b
Merkle root
3b1ecb6122ade32223c99f192266896d32cf3e3c4cbfc5a86bf3c151f2de2ca8
Previous block
00000185902104f38bc5173f32e3cf76cd080204d729dd77502b79b2630107ca
Next block
0000026ebb8ca3b87d891ae30b10e27f3edc24bafa9728cef6ec497e25174ae4

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 40224 is at or above the activation height 20000: nodes that enforce M2 accept a block there only with a valid ML-DSA-44 block signature.

The node behind this site enforces M2 and holds this block, so its block signature passed the node's check.

Status
In the form M2 requires, followed by the signet solution push (the classical signature)
Signature
5afbf0a556d6a771243880ce74b06130… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
ce9499ec2b72…55f30475134d coinbase1250.0000031
cc6bd8a69a12…4cbd7b8cce67 pays to P2MR1214.699854380.0000031