Pith Number

pith:GFOOAXVI

pith:2022:GFOOAXVIJCFQDOVM47O5KMDJLF

not attested not anchored not stored refs pending

What's for Lunch? A systematic ordering of foods in the Soup-Salad-Sandwich phase space

Caroline Martin, Madelyn Leembruggen

arxiv:2203.16580 v1 · 2022-03-30 · physics.pop-ph · cond-mat.soft

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GFOOAXVIJCFQDOVM47O5KMDJLF}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-05T04:10:13.885378Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

315ce05ea8488b01baace7ddd530695948c575fa908dd93a8452abb9e6daa615

Aliases

arxiv: 2203.16580 · arxiv_version: 2203.16580v1 · doi: 10.48550/arxiv.2203.16580 · pith_short_12: GFOOAXVIJCFQ · pith_short_16: GFOOAXVIJCFQDOVM · pith_short_8: GFOOAXVI

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/GFOOAXVIJCFQDOVM47O5KMDJLF \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 315ce05ea8488b01baace7ddd530695948c575fa908dd93a8452abb9e6daa615

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "37982fa729d6deff5970196077b92341b22d09971c2664634a349bca866470b9",
    "cross_cats_sorted": [
      "cond-mat.soft"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.pop-ph",
    "submitted_at": "2022-03-30T18:12:32Z",
    "title_canon_sha256": "5131f8f61e55c6fa2234f765929f8eabbf12a972e8afc782956e52c7320fa61e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2203.16580",
    "kind": "arxiv",
    "version": 1
  }
}