Pith Number

pith:CVPJQMNZ

pith:2019:CVPJQMNZZQX425DUTMQDC2YR7J

not attested not anchored not stored refs pending

Formal structure of periodic system of elements

Guillermo Restrepo, Wilmer Leal

arxiv:1902.10752 v1 · 2019-02-27 · cs.DM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{CVPJQMNZZQX425DUTMQDC2YR7J}

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	2026-05-17T23:46:09.062035Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

155e9831b9cc2fcd74749b20316b11fa7bc704456c0c10a9e1a0c7c8ed171dea

Aliases

arxiv: 1902.10752 · arxiv_version: 1902.10752v1 · doi: 10.48550/arxiv.1902.10752 · pith_short_12: CVPJQMNZZQX4 · pith_short_16: CVPJQMNZZQX425DU · pith_short_8: CVPJQMNZ

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/CVPJQMNZZQX425DUTMQDC2YR7J \
  | 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: 155e9831b9cc2fcd74749b20316b11fa7bc704456c0c10a9e1a0c7c8ed171dea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ccd175647ec99f48c109b2242c319e949f8207068c7ed11ac43248390b897155",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DM",
    "submitted_at": "2019-02-27T19:50:46Z",
    "title_canon_sha256": "0d9b420c998b9e8f11d9e77b0184575fe291e510caae6532970b3b0f710626dd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.10752",
    "kind": "arxiv",
    "version": 1
  }
}