Pith Number

pith:KMSW5RQN

pith:1995:KMSW5RQNVE4LX7WQNSZ5XLRGHJ

not attested not anchored not stored refs pending

Integral Subschemes of Codimension Two

Scott Nollet

arxiv:alg-geom/9504008 v1 · 1995-04-15 · alg-geom · math.AC · 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{KMSW5RQNVE4LX7WQNSZ5XLRGHJ}

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	2026-05-18T01:37:42.957747Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

53256ec60da938bbfed06cb3dbae263a730ae7cc0bb1269b2d1d6d5affdc0412

Aliases

arxiv: alg-geom/9504008 · arxiv_version: alg-geom/9504008v1 · doi: 10.48550/arxiv.alg-geom/9504008 · pith_short_12: KMSW5RQNVE4L · pith_short_16: KMSW5RQNVE4LX7WQ · pith_short_8: KMSW5RQN

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/KMSW5RQNVE4LX7WQNSZ5XLRGHJ \
  | 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: 53256ec60da938bbfed06cb3dbae263a730ae7cc0bb1269b2d1d6d5affdc0412

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e377ce4f596f0523c919ffc4f23c64ea556128cd40b6a3dbe5f1e639eb60e600",
    "cross_cats_sorted": [
      "math.AC",
      "math.AG"
    ],
    "license": "",
    "primary_cat": "alg-geom",
    "submitted_at": "1995-04-15T20:38:26Z",
    "title_canon_sha256": "6c74bd9db3e86b3443b5ddf19efc61ad58fd7382f6d575cba643247302c82344"
  },
  "schema_version": "1.0",
  "source": {
    "id": "alg-geom/9504008",
    "kind": "arxiv",
    "version": 1
  }
}