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

Block 28724

Hash
000001b47460dce0d107c84e91486e126926bf128583cf1fd8d17d9bb7e3bf41
Confirmations
11587
Time
2026-10-21 04:45:53 UTC
Median time
2026-10-21 04:37:50 UTC
Transactions
3
Size
3,182
Weight
12,212
Difficulty
0.0021387367
Bits
1e01d38f
Merkle root
6fc16c652e26b528188db162d26773288ae01f447431697f418f3562d0ddf404
Previous block
000001c18982fbb7e057bc722f8d92e407f59bb5ab0a8cd11af512c01f2f3af1
Next block
000001046db99e0f332da2a14704c19409f180c8bb7a9d59a8332bef267e05fa

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 28724 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
236f8d228acbc6da58007bf3038e04c0… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
8f410110872f…a3336f24744f coinbase1250.0000062
a507cee287e6…c880b156a233 pays to P2MR1220.99990680.0000031
d8744ca35fc6…d8dce02f4c6a pays to P2MR122.9998510.0000031