Pith Number

pith:W5QGTHIU

pith:2019:W5QGTHIU2EOEPIW5XMFN3SCTV3

not attested not anchored not stored refs pending

Crowdsourcing open citations with CROCI -- An analysis of the current status of open citations, and a proposal

David Shotton, Ivan Heibi, Silvio Peroni

arxiv:1902.02534 v2 · 2019-02-07 · 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{W5QGTHIU2EOEPIW5XMFN3SCTV3}

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	2026-05-17T23:42:48.485431Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b760699d14d11c47a2ddbb0addc853aee76dd0716d1fc27e7aee40bfaef358d5

Aliases

arxiv: 1902.02534 · arxiv_version: 1902.02534v2 · doi: 10.48550/arxiv.1902.02534 · pith_short_12: W5QGTHIU2EOE · pith_short_16: W5QGTHIU2EOEPIW5 · pith_short_8: W5QGTHIU

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/W5QGTHIU2EOEPIW5XMFN3SCTV3 \
  | 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: b760699d14d11c47a2ddbb0addc853aee76dd0716d1fc27e7aee40bfaef358d5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "739dd3598d5344332061220f69a0a6b3b3e7ed9c18502f453758e16d753cf59e",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.DL",
    "submitted_at": "2019-02-07T09:22:51Z",
    "title_canon_sha256": "8b6af7e4541da73afc4b060c4d337afda559b9f8d8bd86f3fa0b7015c2c7b34e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.02534",
    "kind": "arxiv",
    "version": 2
  }
}