Pith Number

pith:O5EHQLAI

pith:2020:O5EHQLAIC3AXA64WPELTQHZLUJ

not attested not anchored not stored refs pending

Building a PubMed knowledge graph

Chongyan Chen, Daifeng Li, Donghyeon Kim, Islam Akef Ebeid, Jaewoo Kang, Jian Xu, Justin F. Rousseau, Minbyul Jeong, Min Song, Sunkyu Kim, Vetle I. Torvik, Weijia Xu, Xin Li, Yi Bu, Ying Ding

arxiv:2005.04308 v2 · 2020-05-08 · cs.DL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{O5EHQLAIC3AXA64WPELTQHZLUJ}

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	2026-07-05T01:02:59.708177Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7748782c0816c1707b967917381f2ba24981f95ef69872c7c53b1d1bca531ac4

Aliases

arxiv: 2005.04308 · arxiv_version: 2005.04308v2 · doi: 10.48550/arxiv.2005.04308 · pith_short_12: O5EHQLAIC3AX · pith_short_16: O5EHQLAIC3AXA64W · pith_short_8: O5EHQLAI

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/O5EHQLAIC3AXA64WPELTQHZLUJ \
  | 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: 7748782c0816c1707b967917381f2ba24981f95ef69872c7c53b1d1bca531ac4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2b342edf6682f239f5ddf3aab34a726032824f8003d43991f7955e111c194958",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DL",
    "submitted_at": "2020-05-08T22:36:49Z",
    "title_canon_sha256": "ea3484b8124c1363eac950f70d39585f839a1209801d47846e2c83232e2d4413"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2005.04308",
    "kind": "arxiv",
    "version": 2
  }
}