Pith Number

pith:R6JLADSU

pith:2018:R6JLADSU7Z6FCUDUFOO4TU6SAM

not attested not anchored not stored refs pending

Data-mining the Foundational Patents of Photovoltaic Materials: An application of Patent Citation Spectroscopy

Jordan Comins, Loet Leydesdorff

arxiv:1801.09479 v4 · 2018-01-29 · cs.DL · cs.CY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{R6JLADSU7Z6FCUDUFOO4TU6SAM}

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	2026-05-18T00:18:56.951924Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8f92b00e54fe7c5150742b9dc9d3d203373d56285a8307f59039e10431e8399b

Aliases

arxiv: 1801.09479 · arxiv_version: 1801.09479v4 · doi: 10.48550/arxiv.1801.09479 · pith_short_12: R6JLADSU7Z6F · pith_short_16: R6JLADSU7Z6FCUDU · pith_short_8: R6JLADSU

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/R6JLADSU7Z6FCUDUFOO4TU6SAM \
  | 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: 8f92b00e54fe7c5150742b9dc9d3d203373d56285a8307f59039e10431e8399b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2d215eee8d8fcecc29da3c1cebb773953773f34bcd55b118dee3aebbc0f79a9a",
    "cross_cats_sorted": [
      "cs.CY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DL",
    "submitted_at": "2018-01-29T12:41:06Z",
    "title_canon_sha256": "a53f0968161c8664e8b915b25c036b4ac96b0a6ce43f89aeb8d3731fe67ea906"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.09479",
    "kind": "arxiv",
    "version": 4
  }
}