# Third-party notices

This project contains or refers to the following third-party material. These
notices do not change the license of the rest of the project.

## Astronomy Engine

`js/astronomy.js` is Astronomy Engine by Don Cross, copyright © 2019–2023,
licensed under the MIT License. The original notice is preserved in the file.

Source: <https://github.com/cosinekitty/astronomy>

## IANA time-zone data

`js/tzcoords.js` contains reference-city coordinates generated from the IANA
time-zone database's `zone.tab`. The file carries its own provenance note.

Source: <https://www.iana.org/time-zones>

## Playing-card figures

The twelve court-card figures in `assets/cards/JC.webp` through
`assets/cards/KS.webp` are based on Byron Knoll's playing-card artwork,
identified by the source listing as CC0.

Source: <https://opengameart.org/content/playing-cards-vector-png>

## BIP39 and BIP84

The Seed Oracle refers to the Bitcoin Improvement Proposal standards BIP39
and BIP84. BIP39 states that the proposal falls under the MIT License. The
site's implementation and educational presentation remain separate from the
Bitcoin project and are not a wallet.

Sources:

- <https://github.com/bitcoin/bips/blob/master/bip-0039.mediawiki>
- <https://github.com/bitcoin/bips/blob/master/bip-0084.mediawiki>

The Seed Oracle also links to Ian Coleman's BIP39 project, whose MIT notice is
shown in the Seed Oracle interface.

Source: <https://github.com/iancoleman/bip39>

## Richmond source material

`js/richmonddata.js` identifies its source as Olney H. Richmond's *Mystic
Test Book* (1893), treated here as public-domain historical source material.
The Elements' Mystic Test Book reading also uses the original planetary source
wording. The site links to a Library of Congress scan of a historical edition:
<https://tile.loc.gov/storage-services/public/gdcmassbookdig/mystictestbook01rich/mystictestbook01rich.pdf>

Modern scans, editions, annotations, or transcriptions may carry separate
rights and are not intended to be reproduced here.

## Astronomy and Human Design terminology

The site's planetary and gate calculations are an independent presentation.
It is not affiliated with or endorsed by NASA, JPL, Human Design Films Ltd.,
or any other named organization. No official logos, graphics, or proprietary
reading text are intended to be reproduced.

## Hosted fonts

The pages request Inter and Lora from Google Fonts rather than bundling font
files in this repository. If the fonts are self-hosted in the future, their
current license and attribution requirements should be reviewed again.