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

Block 28740

Hash
000000cf2e78230f738a8223a07b44e82af19da310eca316690f3e3059b37948
Confirmations
11532
Time
2026-10-21 05:12:11 UTC
Median time
2026-10-21 05:03:57 UTC
Transactions
3
Size
3,208
Weight
12,109
Difficulty
0.0021387367
Bits
1e01d38f
Merkle root
74d57c3951c0a4c2c9a7ba974a769dc9e86287a49e7714120b274b0d8c86210c
Previous block
0000011c0986b648b721f5c1104761452a7bc87fd7dd7bee12c8f8a962bfef4d
Next block
00000198090e455cca33a8fe75c41bdfc1b2712cd247ee7e0d708ac7ff766b32

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 28740 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
bac523d052ca493b3b4bc524dded23bd… (2420 B)
Format version
0x01
Context string
SIGNET/PQBLOCK/EXP0
Block key the nodes require
SHA-256 eee8548f51f25492de3ae430b7ce7ec549edfaa663b8f577f026ce0498fdd6ad

Transactions

txidInputsOutputsAmountFee
03e96e161d7b…fd51fa5a566c coinbase1250.00000568
6b828ba2691a…9860b5886dcd pays to P2MR1211.99987890.0000031
7abc7308ba19…02511db71e72 spends P2MR pays to P2MR110.999997420.00000258