Pith Number

pith:Y3EEVK7X

pith:2003:Y3EEVK7XN3GZWRNHPI2JQ73HVP

not attested not anchored not stored refs pending

On Stein Neighborhood Basis of Real Surfaces

Marko Slapar

arxiv:math/0309218 v1 · 2003-09-12 · math.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Y3EEVK7XN3GZWRNHPI2JQ73HVP}

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	2026-05-18T02:26:32.168633Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c6c84aabf76ecd9b45a77a34987f67abc7b0f357b7e0e118d22d54900cf3704d

Aliases

arxiv: math/0309218 · arxiv_version: math/0309218v1 · doi: 10.48550/arxiv.math/0309218 · pith_short_12: Y3EEVK7XN3GZ · pith_short_16: Y3EEVK7XN3GZWRNH · pith_short_8: Y3EEVK7X

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/Y3EEVK7XN3GZWRNHPI2JQ73HVP \
  | 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: c6c84aabf76ecd9b45a77a34987f67abc7b0f357b7e0e118d22d54900cf3704d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9ae94d652fa49b567734c8533a1a24e28e597de2003446ca5a2ca822b8f4d5f3",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "math.CV",
    "submitted_at": "2003-09-12T20:19:52Z",
    "title_canon_sha256": "79b224cc13a1f057905c66e6124100d788969d5e67b9f4abd1f6eb542561b8ac"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0309218",
    "kind": "arxiv",
    "version": 1
  }
}