Pith Number

pith:WPVHOSFR

pith:2010:WPVHOSFR6IB6MTYPOVGN2MMLAE

not attested not anchored not stored refs pending

A note on Chern-Schwartz-MacPherson class

Toru Ohmoto

arxiv:1004.0011 v2 · 2010-03-31 · math.AG · math.AT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WPVHOSFR6IB6MTYPOVGN2MMLAE}

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	2026-05-18T00:37:58.855703Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b3ea7748b1f203e64f0f754cdd318b0107b0b1a83cc132d5c561d7d0a20afa3f

Aliases

arxiv: 1004.0011 · arxiv_version: 1004.0011v2 · doi: 10.48550/arxiv.1004.0011 · pith_short_12: WPVHOSFR6IB6 · pith_short_16: WPVHOSFR6IB6MTYP · pith_short_8: WPVHOSFR

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/WPVHOSFR6IB6MTYPOVGN2MMLAE \
  | 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: b3ea7748b1f203e64f0f754cdd318b0107b0b1a83cc132d5c561d7d0a20afa3f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0258a12d40ad4cb043eae9c41626b86edad6e84bce0b8cf822d5ff9869b903b7",
    "cross_cats_sorted": [
      "math.AT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.AG",
    "submitted_at": "2010-03-31T21:19:24Z",
    "title_canon_sha256": "c327e74259ee7630a68e80b1cf79f0c9465bd43a4a3a0f9855bceae7d4e318ca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1004.0011",
    "kind": "arxiv",
    "version": 2
  }
}