Pith Number

pith:X7OUWEXT

pith:2026:X7OUWEXT246CIECOX6ORKOQXFZ

not attested not anchored not stored refs pending

Quantifying the evolving topical structure of science across journals, countries, regions, and research domains

Carlos Oscar S. Sorzano

arxiv:2606.07573 v1 · 2026-05-26 · 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{X7OUWEXT246CIECOX6ORKOQXFZ}

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	2026-06-09T00:04:43.458619Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bfdd4b12f3d73c24104ebf9d153a172e471fa3d35b10b4106acddd400e7ff9a4

Aliases

arxiv: 2606.07573 · arxiv_version: 2606.07573v1 · doi: 10.48550/arxiv.2606.07573 · pith_short_12: X7OUWEXT246C · pith_short_16: X7OUWEXT246CIECO · pith_short_8: X7OUWEXT

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/X7OUWEXT246CIECOX6ORKOQXFZ \
  | 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: bfdd4b12f3d73c24104ebf9d153a172e471fa3d35b10b4106acddd400e7ff9a4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c25b1c1a38f8bfaba40a35af8ee2b9b44525136b3304dabb83ae1e59a291bf94",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.DL",
    "submitted_at": "2026-05-26T07:43:23Z",
    "title_canon_sha256": "733ae5516ad0d602e666e6b637142d2dc05897d955acdaf5f64e29b5909f9839"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.07573",
    "kind": "arxiv",
    "version": 1
  }
}