Pith Number

pith:XGUQTB5Q

pith:2001:XGUQTB5QUKYMBCZUHRODXNT3BS

not attested not anchored not stored refs pending

Hypersurfaces of Prescribed Gauss Curvature in Exterior Domains

Felix Finster, Oliver C. Schnuerer

arxiv:math/0102148 v2 · 2001-02-19 · math.DG · math.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XGUQTB5QUKYMBCZUHRODXNT3BS}

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	2026-05-18T03:00:59.880360Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b9a90987b0a2b0c08b343c5c3bb67b0c88bd24a2b0fa083d9dc360165889d2b9

Aliases

arxiv: math/0102148 · arxiv_version: math/0102148v2 · doi: 10.48550/arxiv.math/0102148 · pith_short_12: XGUQTB5QUKYM · pith_short_16: XGUQTB5QUKYMBCZU · pith_short_8: XGUQTB5Q

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/XGUQTB5QUKYMBCZUHRODXNT3BS \
  | 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: b9a90987b0a2b0c08b343c5c3bb67b0c88bd24a2b0fa083d9dc360165889d2b9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d18e2211a75ff19aaff1c412ef8e57f197382dd8c900308a3ed6dac31eea45f8",
    "cross_cats_sorted": [
      "math.AP"
    ],
    "license": "",
    "primary_cat": "math.DG",
    "submitted_at": "2001-02-19T15:08:15Z",
    "title_canon_sha256": "bc9af7af3605c1bf17d2254b02e4dfde8799e1c5da64285c2081e306505a59fa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "math/0102148",
    "kind": "arxiv",
    "version": 2
  }
}