Pith Number

pith:METOUDVV

pith:2020:METOUDVVX7FFVXRUBUXUINDKGV

not attested not anchored not stored refs pending

A mathematical model of national-level food system sustainability

Conor Goold, Fiona Smith, Lisa M. Collins, Nik Lomax, Simone Pfuderer, William H. M. James

arxiv:2012.08355 v1 · 2020-12-14 · econ.GN · physics.soc-ph · q-fin.EC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{METOUDVVX7FFVXRUBUXUINDKGV}

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	2026-07-05T01:59:42.715592Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6126ea0eb5bfca5ade340d2f44346a35502c4464bdb2bb9fbed1366d1c11cbc3

Aliases

arxiv: 2012.08355 · arxiv_version: 2012.08355v1 · doi: 10.48550/arxiv.2012.08355 · pith_short_12: METOUDVVX7FF · pith_short_16: METOUDVVX7FFVXRU · pith_short_8: METOUDVV

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/METOUDVVX7FFVXRUBUXUINDKGV \
  | 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: 6126ea0eb5bfca5ade340d2f44346a35502c4464bdb2bb9fbed1366d1c11cbc3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f651dc9d9f97c94b08c196370d5f5c2c3bc9ca4e139bd1fb4a6b4cad9d887897",
    "cross_cats_sorted": [
      "physics.soc-ph",
      "q-fin.EC"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "econ.GN",
    "submitted_at": "2020-12-14T16:06:35Z",
    "title_canon_sha256": "c98fae5e42e80f09aeaed0cf001655a590152cdf7115fa1061cd489454a69c4c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.08355",
    "kind": "arxiv",
    "version": 1
  }
}