Pith Number

pith:JRH56SZW

pith:2016:JRH56SZWXLCAFNALKNJTVIE5XO

not attested not anchored not stored refs pending

"420 Friendly": Revealing Marijuana Use via Craigslist Rental Ads

Anh Nguyen, Dong Nguyen, Long Nguyen, Tuan Tran, Uyen Le

arxiv:1612.07630 v2 · 2016-12-22 · cs.CY · 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{JRH56SZWXLCAFNALKNJTVIE5XO}

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	2026-05-18T00:53:47.361036Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4c4fdf4b36bac402b40b53533aa09dbb854cd37c08eabba97ab9b66131318d65

Aliases

arxiv: 1612.07630 · arxiv_version: 1612.07630v2 · doi: 10.48550/arxiv.1612.07630 · pith_short_12: JRH56SZWXLCA · pith_short_16: JRH56SZWXLCAFNAL · pith_short_8: JRH56SZW

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/JRH56SZWXLCAFNALKNJTVIE5XO \
  | 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: 4c4fdf4b36bac402b40b53533aa09dbb854cd37c08eabba97ab9b66131318d65

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bb5529bfcb20311eaf762c6d62328b17a0c7d1d4e941fa4e2e4d305c9c5eb952",
    "cross_cats_sorted": [
      "cs.SI"
    ],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2016-12-22T15:00:16Z",
    "title_canon_sha256": "3c9ebb64cad5ce16a7db63a8d146db40081e41764e672cbceb4b062d4fa632fc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1612.07630",
    "kind": "arxiv",
    "version": 2
  }
}