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

Block 27723

Hash
00000160e8bd0e7aa9bec64a63dad54196e1b879cd22e6d7b6b356bc9506a099
Confirmations
13755
Time
2026-10-20 01:35:55 UTC
Median time
2026-10-20 01:27:27 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0023644668
Bits
1e01a6ec
Merkle root
0d0cef334d0e0df3164d978640f903cc69d184d7e01eba42b256bc8529c58289
Previous block
000000ac6d375c9e12a04d9ed3db9a8cb4a09ddd449ea7200f970925860392f2
Next block
000000f7c15d69bf351dc4cf733ea0330d664f9c9aebe38e11fb22c8eb2349c7

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 27723 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
e42082d363f6aad83ecde69df9e17d96… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
0d0cef334d0e…bc8529c58289 coinbase1250