Pith Number

pith:7WDZLIM7

pith:2019:7WDZLIM75APF5XCCPZYHU452KG

not attested not anchored not stored refs pending

Large-scale and high-resolution analysis of food purchases and health outcomes

Daniele Quercia, Luca Maria Aiello, Lucia Del Prete, Rossano Schifanella

arxiv:1905.00140 v1 · 2019-04-30 · cs.CY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7WDZLIM75APF5XCCPZYHU452KG}

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	2026-05-17T23:47:13.601100Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd8795a19fe81e5edc427e707a73ba5180fdee26af22cd3fd0b0d1828f8cd186

Aliases

arxiv: 1905.00140 · arxiv_version: 1905.00140v1 · doi: 10.48550/arxiv.1905.00140 · pith_short_12: 7WDZLIM75APF · pith_short_16: 7WDZLIM75APF5XCC · pith_short_8: 7WDZLIM7

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/7WDZLIM75APF5XCCPZYHU452KG \
  | 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: fd8795a19fe81e5edc427e707a73ba5180fdee26af22cd3fd0b0d1828f8cd186

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4b2dfaf3a04606102b18ada47d8467009ab6be355b9c4d4834de8e6c4e9c2366",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2019-04-30T23:51:57Z",
    "title_canon_sha256": "d3cff5869a5fadc0fc55319f507c3c31089b25010c7c2aa5c548f5f3aab6f0bb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1905.00140",
    "kind": "arxiv",
    "version": 1
  }
}