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

Block 21317

Hash
0000007f9b2e0c31b6f711ad7f0ed403ecba84e54e0c2658d4ab1821263010f8
Confirmations
20021
Time
2026-10-12 17:12:11 UTC
Median time
2026-10-12 17:04:22 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
64f565f1917eafa29ec6db810a15a6d6a7e8e86eb60e0efa7f81e870f0f2e39b
Previous block
0000012fe0f3e133dd48161880f8fc18250c1c0482c03a0862a52ad3ce9a86c0
Next block
0000011a3c7de2eab1745a5c76fc062b8da00ecd98ac86d8feeb4ded95f3a8cb

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 21317 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
f94d7608f88fd0694fb16de5a032e942… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
64f565f1917e…e870f0f2e39b coinbase1250