Pith Number

pith:CTDPTITL

pith:2020:CTDPTITLAF5CSDGS6KQHYUI3U7

not attested not anchored not stored refs pending

Trends in Cuban research output: publications and patents

Yasset Perez-Riverol

arxiv:2007.09638 v1 · 2020-07-19 · 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{CTDPTITLAF5CSDGS6KQHYUI3U7}

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	2026-07-05T01:20:27.412750Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

14c6f9a26b017a290cd2f2a07c511ba7d575586925886b0dea51bc383ee190c1

Aliases

arxiv: 2007.09638 · arxiv_version: 2007.09638v1 · doi: 10.48550/arxiv.2007.09638 · pith_short_12: CTDPTITLAF5C · pith_short_16: CTDPTITLAF5CSDGS · pith_short_8: CTDPTITL

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/CTDPTITLAF5CSDGS6KQHYUI3U7 \
  | 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: 14c6f9a26b017a290cd2f2a07c511ba7d575586925886b0dea51bc383ee190c1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9dcc31f256e37601f21e6cceca23af5095d0b3d657ec673456a0e07ef5c8653e",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.DL",
    "submitted_at": "2020-07-19T09:47:16Z",
    "title_canon_sha256": "3e5c4c64967da42281f1194efaaeb2f3158bd249c00f593ec354d7a5ff1347b3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2007.09638",
    "kind": "arxiv",
    "version": 1
  }
}