Pith Number

pith:GYHLF7UY

pith:1995:GYHLF7UY4VDQLEYGBS3GTDBNHV

not attested not anchored not stored refs pending

Recent contributions to the calculus of finite differences: a survey

Daniel E. Loeb, Gian-Carlo Rota

arxiv:math/9502210 v1 · 1995-02-09 · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GYHLF7UY4VDQLEYGBS3GTDBNHV}

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	2026-05-18T01:05:50.525730Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

360eb2fe98e5470593060cb6698c2d3d5a90aee088b7cbc40e21a7e921b1e1be

Aliases

arxiv: math/9502210 · arxiv_version: math/9502210v1 · doi: 10.48550/arxiv.math/9502210 · pith_short_12: GYHLF7UY4VDQ · pith_short_16: GYHLF7UY4VDQLEYG · pith_short_8: GYHLF7UY

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/GYHLF7UY4VDQLEYGBS3GTDBNHV \
  | 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: 360eb2fe98e5470593060cb6698c2d3d5a90aee088b7cbc40e21a7e921b1e1be

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5599743deb669b6a77ccbf53b0f2e84dc02457415124ad934e37356f39844e74",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.CO",
    "submitted_at": "1995-02-09T00:00:00Z",
    "title_canon_sha256": "287ef454743ddd6229ce1b5d603ec618160891d9f9f0a390ff9529226bf54289"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/9502210",
    "kind": "arxiv",
    "version": 1
  }
}