Pith Number

pith:WXTMXD7C

pith:2001:WXTMXD7CN4WMWOMPYUSU4YTS3H

not attested not anchored not stored refs pending

Sections hyperplanes et endomorphismes de l'espace projectif

France), Guillaume Jamet (Institut de Mathematiques, Univ. Paris 6

arxiv:math/0103202 v1 · 2001-03-28 · math.AG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WXTMXD7CN4WMWOMPYUSU4YTS3H}

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	2026-05-18T01:38:30.003027Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b5e6cb8fe26f2ccb398fc5254e6272d9cbf1a8acca85343630a6444f799739d4

Aliases

arxiv: math/0103202 · arxiv_version: math/0103202v1 · doi: 10.48550/arxiv.math/0103202 · pith_short_12: WXTMXD7CN4WM · pith_short_16: WXTMXD7CN4WMWOMP · pith_short_8: WXTMXD7C

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/WXTMXD7CN4WMWOMPYUSU4YTS3H \
  | 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: b5e6cb8fe26f2ccb398fc5254e6272d9cbf1a8acca85343630a6444f799739d4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4b1dff72db4c0098b51cdfba62c21df69380883b8f1894da66c73eebaef96c47",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.AG",
    "submitted_at": "2001-03-28T18:33:43Z",
    "title_canon_sha256": "ea79c8f2f3806c32789e712deaaea9b89c7ab49060f0d1c7d5705efb86733807"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0103202",
    "kind": "arxiv",
    "version": 1
  }
}