Pith Number

pith:7KAQVIWK

pith:2017:7KAQVIWK3MJRSW3IMJUUE7GB6Y

not attested not anchored not stored refs pending

Mapping Patent Classifications: Portfolio and Statistical Analysis, and the Comparison of Strengths and Weaknesses

Bowen Yan, Dieter Franz Kogler, Loet Leydesdorff

arxiv:1702.07481 v2 · 2017-02-24 · 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{7KAQVIWK3MJRSW3IMJUUE7GB6Y}

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	2026-05-18T00:32:55.337484Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fa810aa2cadb13195b686269427cc1f61135aac1ac59d772f3c75607a41a404e

Aliases

arxiv: 1702.07481 · arxiv_version: 1702.07481v2 · doi: 10.48550/arxiv.1702.07481 · pith_short_12: 7KAQVIWK3MJR · pith_short_16: 7KAQVIWK3MJRSW3I · pith_short_8: 7KAQVIWK

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/7KAQVIWK3MJRSW3IMJUUE7GB6Y \
  | 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: fa810aa2cadb13195b686269427cc1f61135aac1ac59d772f3c75607a41a404e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "12bf53fbd80cd4fa6493b51b000b69f04cac23701f91b3f48273541ab76f7605",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DL",
    "submitted_at": "2017-02-24T07:29:46Z",
    "title_canon_sha256": "9f1a9d89b3445d698fc845ed296ac027a79f4cddb5e6690ebe37c9c7a57c67b9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.07481",
    "kind": "arxiv",
    "version": 2
  }
}