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

Block 21384

Hash
0000001371c59ec9691ead5f805fc9fe8d5adda7e065383c318da85fdaf8f55a
Confirmations
20698
Time
2026-10-12 19:04:58 UTC
Median time
2026-10-12 18:56:51 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
a75ac5d8f65a4fb9f4166cfef0987db917fc29a509eb2396c16a042cb156c26e
Previous block
0000012ba73d340df5247a9d1ba402977542331784987a51ca766199cde3f630
Next block
0000013175bb389f2d0cb09fea726b7ed4d7521b870ea64a6af5a75b19316008

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 21384 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
52eb91a2bc0e15ce9daa5965b7f97b5b… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
a75ac5d8f65a…042cb156c26e coinbase1250