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

Block 21771

Hash
000000328ef9725674d95bb4bc2bdceed7bf2d5506d12c58a335ad9d907645e5
Confirmations
18838
Time
2026-10-13 05:53:02 UTC
Median time
2026-10-13 05:44:26 UTC
Transactions
3
Size
3,182
Weight
12,212
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
f5115567994aae79e9256220d49c3f442c7b686443a3da1d7514da846ed5b397
Previous block
000000acaffc54055d654588fb5c2f9317f704410ab895c1bb39edd55c592f80
Next block
000000aece399911f826b0a6792a4c8584bf43e26bed6c4aca8c0f32de12fe8b

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 21771 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
11c9d63cc8c1e58d8b2586c874568a7f… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
3009af9e9def…346b01c3e5f8 coinbase1250.0000062
004af8fe5668…5e7a2aa96b63 pays to P2MR1224.99991920.0000031
42e5c079f5e8…4bc25638e4f0 pays to P2MR1246.99998740.0000031