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

Block 22016

Hash
0000009171f7c5157e54c4c3ca27af64c8a95606a9d88ee74c54a13b927c7014
Confirmations
18210
Time
2026-10-13 12:42:22 UTC
Median time
2026-10-13 12:33:49 UTC
Transactions
2
Size
2,977
Weight
11,596
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
6bda7a43f796b92a2d014a361c8e2c8e0de3ca92d6d3e73e8affb6e7cbcbdc2f
Previous block
00000093eb944b5f0edf88f766920d45c02ed167cf833bb30e2acdee1830c094
Next block
000000f0ef441688e26e38c79fa4effbde9b9759375a923d8aeccb1f38f1e377

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 22016 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
3c56aa7263b36cd1fe054856334d0779… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
ba66a3e15e6a…a1640545f9f0 coinbase1250.0000031
e6a9e3454b37…03c055df5460 pays to P2MR1215.99989130.0000031