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

Block 20672

Hash
00000108d9bfc27080d86f6bca3166599f266e43f82b9598d71454a8fa4cbc04
Confirmations
21408
Time
2026-10-11 23:16:24 UTC
Median time
2026-10-11 23:08:10 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
f4bcdda8aa282374d4aa218330d3c6373523b263159e892f8ef897d1cac7fcc2
Previous block
00000054408506138aa004df72773fb4d7c23fc4b42e998b0b86790b14cb9db6
Next block
000000d0a52238da8556eedee7b3ec8e8a2407d48605bd76414368f7001a34f9

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 20672 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
90a6221cce92768906f0950f39880015… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
f4bcdda8aa28…97d1cac7fcc2 coinbase1250