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

Block 20181

Hash
0000003dd6be157261a7e6c2f8436e0697e18c8cb166e4ec9227e86dc818fc53
Confirmations
21353
Time
2026-10-11 09:46:31 UTC
Median time
2026-10-11 09:38:09 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
2255b0f032592bfed2119ab8b1b9648788f7c0b916aa5e2fb632bf77493e52b2
Previous block
000000873fbd835874aec2858cfcf5e2997665fc1c08b5aace99659f72c164b7
Next block
0000013b4ef1153fbd82afe30dda1d1ce0fd51f1cde3bfcaef2fc419e6bd9a9d

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 20181 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
c6cf2404e0d78e81638cd0ae695e98a8… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
2255b0f03259…bf77493e52b2 coinbase1250