Pith Number

pith:UU36EMVY

pith:2021:UU36EMVYVSJQ7G4QISYPE462FU

not attested not anchored not stored refs pending

Population-scale dietary interests during the COVID-19 pandemic

Arnaud Chiolero, Emre K{\i}c{\i}man, Kristina Gligoric, Robert West, Ryen W. White

arxiv:2109.10808 v2 · 2021-09-22 · cs.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UU36EMVYVSJQ7G4QISYPE462FU}

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	2026-07-05T04:00:03.306660Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a537e232b8ac930f9b9044b0f273da2d10f6b3e256ea3e66fee25b931cbf54a0

Aliases

arxiv: 2109.10808 · arxiv_version: 2109.10808v2 · doi: 10.48550/arxiv.2109.10808 · pith_short_12: UU36EMVYVSJQ · pith_short_16: UU36EMVYVSJQ7G4Q · pith_short_8: UU36EMVY

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/UU36EMVYVSJQ7G4QISYPE462FU \
  | 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: a537e232b8ac930f9b9044b0f273da2d10f6b3e256ea3e66fee25b931cbf54a0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c0f1bf2554085388637b4c32a0fdbfd707fe0b05aae49354835521d81b4b045a",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.SI",
    "submitted_at": "2021-09-22T16:00:14Z",
    "title_canon_sha256": "46df05a2cdfd2fa35dbebec89d7e1682def41c2f52804e91b4dcd5ded8b9ea08"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.10808",
    "kind": "arxiv",
    "version": 2
  }
}