Pith Number

pith:Z5FB7S27

pith:2014:Z5FB7S27RCFY6LSSGE355PA3WK

not attested not anchored not stored refs pending

Patents as Instruments for Exploring Innovation Dynamics: Geographic and Technological Perspectives on "Photovoltaic Cells"

Floortje Alkemade, Gaston Heimeriks, Loet Leydesdorff, Rinke Hoekstra

arxiv:1401.2778 v2 · 2014-01-13 · cs.CY · 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{Z5FB7S27RCFY6LSSGE355PA3WK}

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	2026-05-18T02:43:09.239919Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cf4a1fcb5f888b8f2e523137debc1bb28baf8164f56993503c94c43d37a19c43

Aliases

arxiv: 1401.2778 · arxiv_version: 1401.2778v2 · doi: 10.48550/arxiv.1401.2778 · pith_short_12: Z5FB7S27RCFY · pith_short_16: Z5FB7S27RCFY6LSS · pith_short_8: Z5FB7S27

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/Z5FB7S27RCFY6LSSGE355PA3WK \
  | 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: cf4a1fcb5f888b8f2e523137debc1bb28baf8164f56993503c94c43d37a19c43

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4430909c06063ffd9d3261d4f4c3159e7eebcf33365ad7ead7db232f9cafb6ac",
    "cross_cats_sorted": [
      "cs.DL"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2014-01-13T10:43:40Z",
    "title_canon_sha256": "f72d24a995980baaf99c94cd230401e1a41a41fbcff8baed70d1b0604080e58b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.2778",
    "kind": "arxiv",
    "version": 2
  }
}