Pith Number

pith:O7RIDRYF

pith:2017:O7RIDRYFOO37DJH54KS46LTGID

not attested not anchored not stored refs pending

Patent Retrieval: A Literature Review

Walid Shalaby, Wlodek Zadrozny

arxiv:1701.00324 v2 · 2017-01-02 · cs.IR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{O7RIDRYFOO37DJH54KS46LTGID}

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	2026-05-17T23:57:54.384346Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

77e281c70573b7f1a4fde2a5cf2e6640c4b35e3b97997bb1a5d6065f58c8daae

Aliases

arxiv: 1701.00324 · arxiv_version: 1701.00324v2 · doi: 10.48550/arxiv.1701.00324 · pith_short_12: O7RIDRYFOO37 · pith_short_16: O7RIDRYFOO37DJH5 · pith_short_8: O7RIDRYF

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/O7RIDRYFOO37DJH54KS46LTGID \
  | 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: 77e281c70573b7f1a4fde2a5cf2e6640c4b35e3b97997bb1a5d6065f58c8daae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c37275e5568be336deb5f928a38bef3dd12c71335fbb9cd8487b88b447b8e31a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2017-01-02T06:32:38Z",
    "title_canon_sha256": "1e96a812131c3ba59112f7458b65153307bb77ccf97b0eef4edbd619b9eb7fde"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.00324",
    "kind": "arxiv",
    "version": 2
  }
}