Pith Number

pith:HPJ2V24J

pith:2011:HPJ2V24J7JBBNE6NA7ZWWYUJML

not attested not anchored not stored refs pending

Embedded constant curvature curves on convex surfaces

Harold Rosenberg, Matthias Schneider

arxiv:1105.1609 v1 · 2011-05-09 · math.DG · math.DS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HPJ2V24J7JBBNE6NA7ZWWYUJML}

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	2026-05-18T04:22:39.107355Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3bd3aaeb89fa421693cd07f36b628962ff4cc601f18ff21b4176265a90ae03ae

Aliases

arxiv: 1105.1609 · arxiv_version: 1105.1609v1 · doi: 10.48550/arxiv.1105.1609 · pith_short_12: HPJ2V24J7JBB · pith_short_16: HPJ2V24J7JBBNE6N · pith_short_8: HPJ2V24J

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/HPJ2V24J7JBBNE6NA7ZWWYUJML \
  | 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: 3bd3aaeb89fa421693cd07f36b628962ff4cc601f18ff21b4176265a90ae03ae

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b2434e119541923b6e37131e797a3085b8a0d6e91a5088703621c788e11cb616",
    "cross_cats_sorted": [
      "math.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2011-05-09T09:50:45Z",
    "title_canon_sha256": "79840f3f0b6e2f27a60575308801138d5699163959a0bd9c9edb0e951bd09c12"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.1609",
    "kind": "arxiv",
    "version": 1
  }
}