Pith Number

pith:O2HEOW5O

pith:2026:O2HEOW5OLMJOW4VHY6CWI3YGYU

not attested not anchored not stored refs pending

Import dependence and per capita production are main determinants of economies' food supply robustness under production shocks

Han-Yu Zhu, Maria Cristina Rulli, Wei-Xing Zhou

arxiv:2608.01010 v1 · 2026-08-02 · econ.GN · 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{O2HEOW5OLMJOW4VHY6CWI3YGYU}

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	2026-08-04T01:56:12.607295Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

768e475bae5b12eb72a7c785646f06c50ee6e19769a17606b3cf0572a2635dec

Aliases

arxiv: 2608.01010 · arxiv_version: 2608.01010v1 · doi: 10.48550/arxiv.2608.01010 · pith_short_12: O2HEOW5OLMJO · pith_short_16: O2HEOW5OLMJOW4VH · pith_short_8: O2HEOW5O

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/O2HEOW5OLMJOW4VHY6CWI3YGYU \
  | 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: 768e475bae5b12eb72a7c785646f06c50ee6e19769a17606b3cf0572a2635dec

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0c11f69aa2e7d7d6618cd4402dfd738bfcd98e931b8a9d1375013c6e54b5b10a",
    "cross_cats_sorted": [
      "q-fin.EC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "econ.GN",
    "submitted_at": "2026-08-02T05:25:52Z",
    "title_canon_sha256": "cdb6c7974e35e5ff63912ef383c6d9adeb3c30fd079c534176ac614982db458e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2608.01010",
    "kind": "arxiv",
    "version": 1
  }
}