Pith Number

pith:XSF7NSII

pith:2012:XSF7NSII23SPFIQU3IHWT3S6LA

not attested not anchored not stored refs pending

UPDATE July 2012 | The Food Crises: The US Drought

Marco Lagi, Yaneer Bar-Yam, Yavni Bar-Yam

arxiv:1209.6376 v1 · 2012-09-27 · physics.soc-ph · q-fin.GN · q-fin.ST

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XSF7NSII23SPFIQU3IHWT3S6LA}

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	2026-05-18T03:44:33.103054Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bc8bf6c908d6e4f2a214da0f69ee5e581d3326112cb51d905b0480fee1c55ddf

Aliases

arxiv: 1209.6376 · arxiv_version: 1209.6376v1 · doi: 10.48550/arxiv.1209.6376 · pith_short_12: XSF7NSII23SP · pith_short_16: XSF7NSII23SPFIQU · pith_short_8: XSF7NSII

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/XSF7NSII23SPFIQU3IHWT3S6LA \
  | 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: bc8bf6c908d6e4f2a214da0f69ee5e581d3326112cb51d905b0480fee1c55ddf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4d53456523ab6cfbb731f6800e4bb923858bd37360b1d5e17ef0936d71cca093",
    "cross_cats_sorted": [
      "q-fin.GN",
      "q-fin.ST"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2012-09-27T21:05:37Z",
    "title_canon_sha256": "af2ac6e36c7e4a12c8250f2dda80ca0f85570df7504cf5d52efc176077b56767"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1209.6376",
    "kind": "arxiv",
    "version": 1
  }
}