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

Block 27665

Hash
00000047e1bbdc14d91e8cb33bd5ac3567e43da913f39227da127c85eeece755
Confirmations
13842
Time
2026-10-20 00:00:44 UTC
Median time
2026-10-19 23:52:52 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0023644668
Bits
1e01a6ec
Merkle root
507475e6470a82c43b8c4963a2fc16d9a6b609950b94039673975617aad0e308
Previous block
000000964f63b63c92d8cefebe4f066b05fe99e4e13bc35f0954a4ba0aea4efa
Next block
000000419eb55c5b6bfdec65391ac700ac0475233b0ab80928e10c0b178ec1af

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 27665 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
c2213aac5a4ba3abf0b5dee166a2e5ba… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
507475e6470a…5617aad0e308 coinbase1250