Pith Number

pith:IKF7GM2T

pith:2020:IKF7GM2TOZKW7HLJCQDB5UUMMK

not attested not anchored not stored refs pending

PatentMatch: A Dataset for Matching Patent Claims & Prior Art

Christoph Hewel, Julian Risch, Nicolas Alder, Ralf Krestel

arxiv:2012.13919 v1 · 2020-12-27 · cs.IR · 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{IKF7GM2TOZKW7HLJCQDB5UUMMK}

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.

Cited by

2 papers in Pith

Citation-Driven Multi-View Training for Patent Embeddings: QaECTER and Sophia-Bench

Formally Verified Patent Analysis via Dependent Type Theory: Machine-Checkable Certificates from a Hybrid AI + Lean 4 Pipeline

Receipt and verification

First computed	2026-07-05T02:02:13.972007Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

428bf3335376556f9d6914061ed28c629bb59d70af76f2a6a9022752f60e3a2e

Aliases

arxiv: 2012.13919 · arxiv_version: 2012.13919v1 · doi: 10.48550/arxiv.2012.13919 · pith_short_12: IKF7GM2TOZKW · pith_short_16: IKF7GM2TOZKW7HLJ · pith_short_8: IKF7GM2T

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/IKF7GM2TOZKW7HLJCQDB5UUMMK \
  | 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: 428bf3335376556f9d6914061ed28c629bb59d70af76f2a6a9022752f60e3a2e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d471dcc7cc522e890c666057500951af108c471a8c7215ca05947c2f098bd211",
    "cross_cats_sorted": [
      "cs.DL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2020-12-27T11:22:25Z",
    "title_canon_sha256": "e36fb0b73fc5a4ee2e927c6c9e78f129d8e4874d6b8d27aefe07e7e31e185248"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.13919",
    "kind": "arxiv",
    "version": 1
  }
}