Pith Number

pith:XEFY7U64

pith:2002:XEFY7U64A3GYL4MU4Q3UN6NFPQ

not attested not anchored not stored refs pending

Inclusion-exclusion and Segre classes

Bonn), Max-Planck-Institut, Paolo Aluffi (Florida State University

arxiv:math/0203122 v1 · 2002-03-13 · 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{XEFY7U64A3GYL4MU4Q3UN6NFPQ}

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	2026-05-18T03:58:14.564959Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b90b8fd3dc06cd85f194e43746f9a57c2f878f99525ae71590c6c4e0e0989673

Aliases

arxiv: math/0203122 · arxiv_version: math/0203122v1 · doi: 10.48550/arxiv.math/0203122 · pith_short_12: XEFY7U64A3GY · pith_short_16: XEFY7U64A3GYL4MU · pith_short_8: XEFY7U64

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/XEFY7U64A3GYL4MU4Q3UN6NFPQ \
  | 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: b90b8fd3dc06cd85f194e43746f9a57c2f878f99525ae71590c6c4e0e0989673

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4282fa04891aa599e83ec53de72370a74d2eb298a5ac2c17805b888678f54d91",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.AG",
    "submitted_at": "2002-03-13T15:01:05Z",
    "title_canon_sha256": "e7dca4c0ff72211979b01a0551100f55653ed79c31bbf6a287c60b1543ae4a52"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0203122",
    "kind": "arxiv",
    "version": 1
  }
}