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

Block 21755

Hash
000000ad561d7c2b07a0cfa1ed3b7fe5ab47559bfc0bfe53863ecbc90d6b7f1f
Confirmations
19635
Time
2026-10-13 05:26:18 UTC
Median time
2026-10-13 05:17:54 UTC
Transactions
2
Size
2,977
Weight
11,596
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
a9b405d83b1b6ae9c079b583d2e1ec11fb6f3baea23fb1e0e8edfb7a9f0a5ed5
Previous block
000000cfa4141889d6941f2dbc3b210a63fd2dffe39480fa2162be3ae72e2103
Next block
000000c86dcb879d2316e23d176d0a5787d77977141265688a910d8593c9fff9

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 21755 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
c8884b9f9b1e3b6b78af5f695986ae0b… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
5ddc87768154…5f3158a7a78a coinbase1250.0000031
c107e183c49f…a97dc643099d pays to P2MR1231.99994090.0000031