{
  "about": "Every source Counted Thread uses, with its citation, location, retrieval date and rights. Nothing is fetched from another host: the floss table and the sample photograph ship with the page, and your own photograph never leaves your browser.",
  "sources": [
    {
      "id": "dmc-floss",
      "citation": "craft-color-codes by MakeBead, data/csv/dmc-floss.csv: DMC six-strand embroidery floss numbers, names and RGB approximations",
      "url": "https://github.com/makebead/craft-color-codes/blob/84dbdc26a961247f2aba58c91f314966a38e64ae/data/csv/dmc-floss.csv",
      "retrieved": "2026-10-09",
      "vendored": "public/dmc.json (by scripts/fetch-dmc.mjs, which checks every hex value against its RGB columns): 489 flosses, none marked discontinued",
      "rights": "Creative Commons Attribution 4.0 International. Required credit, printed in the page footer: \"Color data: craft-color-codes by MakeBead\" (https://makebead.com/). The floss numbers and names are DMC's and are used only to say which thread a symbol means; the RGB values are that project's own approximations of dyed thread.",
      "deviation": "The build spec named the go-c2dmc repository (https://github.com/syke99/go-c2dmc, MIT). Read at commit 1474067bf9c75a4acc15990eb086846f23e025b5, it holds no table: internal/pkg/const.go points at https://floss.maxxmint.com/dmc_to_rgb.php, which it reads at run time, and its MIT licence covers its code only. This page needs a table with a stated licence, so it uses craft-color-codes instead."
    },
    {
      "id": "sample-photograph",
      "citation": "Meredith Bannan (Wikimedia Commons user Squigman), Old English Sheep Dog, photograph, 29 April 2007",
      "url": "https://commons.wikimedia.org/wiki/File:Old_English_Sheep_Dog.JPG",
      "retrieved": "2026-10-09",
      "vendored": "public/sample.jpg (by scripts/fetch-sample.mjs: the original's SHA-1 a4ae122e96921ea664511e1a4035cf197c480078 is checked, then cropped to 2074 x 2592 from x 520 and reduced to 960 x 1200); public/sample-chart.png is its chart at 60 stitches across and 24 flosses (scripts/render-sample.mjs)",
      "rights": "Public domain: released by its author, as the Commons file page records. Credited in the page footer all the same."
    },
    {
      "id": "sharma-2005",
      "citation": "G. Sharma, W. Wu, E. N. Dalal, \"The CIEDE2000 color-difference formula: implementation notes, supplementary test data, and mathematical observations\", Color Research and Application 30(1):21-30, 2005, Table 1",
      "url": "https://hajim.rochester.edu/ece/sites/gsharma/ciede2000/dataNprograms/ciede2000testdata.txt",
      "retrieved": "2026-10-09",
      "vendored": "test/fixtures/sharma2005.json (34 pairs, by scripts/sharma-fixture.mjs). Receipts only: the page computes every colour difference itself.",
      "rights": "Published test data, used as a reference for testing; the formula is a CIE standard (CIE 142-2001, ISO/CIE 11664-6)."
    },
    {
      "id": "lindbloom",
      "citation": "Bruce Lindbloom, CIE Color Calculator (ColorConv.js) and the sRGB working-space matrix and D65 reference white published on brucelindbloom.com",
      "url": "http://www.brucelindbloom.com/javascript/ColorConv.js",
      "retrieved": "2026-10-09",
      "vendored": "test/fixtures/lindbloom-srgb-lab.json: six colours as that calculator converts them (sRGB, D65, sRGB gamma, no adaptation), by scripts/lindbloom-receipts.mjs. The calculator itself is not redistributed.",
      "rights": "Six numeric results used as test receipts, with credit. The matrix and white point are published constants."
    },
    {
      "id": "fonts",
      "citation": "Handjet (Rosetta Type), Atkinson Hyperlegible Next and Atkinson Hyperlegible Mono (Braille Institute of America), variable builds packaged by Fontsource",
      "url": "https://fontsource.org/fonts/handjet, https://fontsource.org/fonts/atkinson-hyperlegible-next, https://fontsource.org/fonts/atkinson-hyperlegible-mono",
      "retrieved": "2026-10-09",
      "vendored": "Bundled from the @fontsource-variable npm packages and served from this host.",
      "rights": "SIL Open Font License 1.1."
    },
    {
      "id": "symbols",
      "citation": "The 81 chart symbols: marks, letters and digits drawn as paths for this page",
      "url": "https://github.com/MeeshaBear1/countedthread/blob/main/src/engine/symbols.ts",
      "retrieved": "2026-10-09",
      "vendored": "src/engine/symbols.ts",
      "rights": "Own work, MIT, like the rest of the code."
    }
  ]
}