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

Block 21379

Hash
000000532fadc7a39cc3ff9815a548d2a99822d67f3141babe970b2b730e37cc
Confirmations
20725
Time
2026-10-12 18:56:51 UTC
Median time
2026-10-12 18:48:40 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
64eda2dd63e96d8faf4204408ed65f779c9296493443a903c3626419c3ab4704
Previous block
0000000544fa2c395e22901f62fa1f01438978cfc2f3e6e8922a12d84ed9ebf7
Next block
000000a83ffbf6041927b7729fde88d620597b0f3393f7ad03eb6c15184934e2

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 21379 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
f1e68eacc35c5b0a8b64a38f5d2349a9… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
64eda2dd63e9…6419c3ab4704 coinbase1250