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

Block 21125

Hash
0000009a17e9ff7674655caf4dd8e507ba4f42e6540dff61fc2fec88f71317d6
Confirmations
19725
Time
2026-10-12 11:47:54 UTC
Median time
2026-10-12 11:39:13 UTC
Transactions
1
Size
2,772
Weight
10,980
Difficulty
0.0031405554
Bits
1e013e69
Merkle root
41c7de43d5bf569b25f8693893393368444d88ebaa58754a85941b872725824a
Previous block
0000004a78ba50817b7f4891d02cda8af9a759e76a003c48199049e7cad3ffb5
Next block
0000003354c214b8177b684b37f2d1e78cdbdfb974ec553ed2703029dd15f7ce

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 21125 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
2957b01452997f2a1fdf86f303cfb930… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
41c7de43d5bf…1b872725824a coinbase1250