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

Block 21488

Hash
000000d961a4a00a8f33712693222512f1c0bf7f519d4483ee4d089965a6881b
Confirmations
19491
Time
2026-10-12 21:58:22 UTC
Median time
2026-10-12 21:49:31 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
0b0a5aebb2e488d9e0e89059d3adca40c809490c37fbaed084559e325afa3406
Previous block
0000012a19d9746e077c7b2b9ed6ecea7c1aca7875416cfb94d11a223318cafd
Next block
0000003a06fd948c6876bd6dc21ab07bb5a78514088c6f6032418f1cfb4fe669

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 21488 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
3e9af5bec89012a81604d9eefbf4bbfa… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
0b0a5aebb2e4…9e325afa3406 coinbase1250