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

Block 40390

Hash
0000018088b79c34c59a88d6cb359ad33aea63030fb8571f979361167c877037
Confirmations
8375
Time
2026-11-03 04:44:24 UTC
Median time
2026-11-03 04:36:40 UTC
Transactions
1
Size
2,773
Weight
10,984
Difficulty
0.0014274344
Bits
1e02bc8c
Merkle root
d3a45f2d383a1267dda6d6d75876cbdc8de7507e3debbfb9f109de8abb2e2c49
Previous block
000002b61a53bc52593badb3a851950da1e4c40137e548bb7d57215b48f43edd
Next block
00000131a1e5e40f770084cde3c31478a184362bd5f1a235da3eb6eb2d3bd1bd

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 40390 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
30a9afd7ee803ea7c1429c584bb130d6… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
d3a45f2d383a…de8abb2e2c49 coinbase1250