Pith Number

pith:3SV55EVE

pith:2002:3SV55EVEVTEWZIY5WX3LGXVDIO

not attested not anchored not stored refs pending

Computing characteristic classes of projective schemes

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

arxiv:math/0204230 v1 · 2002-04-18 · 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{3SV55EVEVTEWZIY5WX3LGXVDIO}

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	2026-05-18T03:58:14.548373Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dcabde92a4acc96ca31db5f6b35ea343befea08b08348ed6be43ea42af343025

Aliases

arxiv: math/0204230 · arxiv_version: math/0204230v1 · doi: 10.48550/arxiv.math/0204230 · pith_short_12: 3SV55EVEVTEW · pith_short_16: 3SV55EVEVTEWZIY5 · pith_short_8: 3SV55EVE

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/3SV55EVEVTEWZIY5WX3LGXVDIO \
  | 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: dcabde92a4acc96ca31db5f6b35ea343befea08b08348ed6be43ea42af343025

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "faafc13c76133ab4816c3d5cbb09e88d92a1b51d9b0c9d655879f7ad12443f6d",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.AG",
    "submitted_at": "2002-04-18T13:08:03Z",
    "title_canon_sha256": "940c0ceaa4ccc6a1886943b91d79e8e2ee7ca45fbab9f226e8b6d3e1c32ba3e9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0204230",
    "kind": "arxiv",
    "version": 1
  }
}