Pith Number

pith:7FJ7LZS5

pith:2013:7FJ7LZS5HRQZ4VNWNSFCIFV3YN

not attested not anchored not stored refs pending

Truth and memory: Linking instantaneous and retrospective self-reported cigarette consumption

Daniel F. Heitjan, Hao Wang, Sandra D. Griffith, Saul Shiffman

arxiv:1301.2429 v1 · 2013-01-11 · stat.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7FJ7LZS5HRQZ4VNWNSFCIFV3YN}

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	2026-05-18T03:36:37.952753Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f953f5e65d3c619e55b66c8a2416bbc36ba66326938673b4aec1adc6cb5274d9

Aliases

arxiv: 1301.2429 · arxiv_version: 1301.2429v1 · doi: 10.48550/arxiv.1301.2429 · pith_short_12: 7FJ7LZS5HRQZ · pith_short_16: 7FJ7LZS5HRQZ4VNW · pith_short_8: 7FJ7LZS5

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/7FJ7LZS5HRQZ4VNWNSFCIFV3YN \
  | 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: f953f5e65d3c619e55b66c8a2416bbc36ba66326938673b4aec1adc6cb5274d9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b5c73a00ba76cd822efb86c2042b52bab142a030a8eef9da1aea16e9a0106d6c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.AP",
    "submitted_at": "2013-01-11T09:26:53Z",
    "title_canon_sha256": "84f8d66db2c8a2b69218636cf4fb7582243872973a2c7986f951ad655513d533"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.2429",
    "kind": "arxiv",
    "version": 1
  }
}