Pith Number

pith:22LGS7KE

pith:2014:22LGS7KEKNZ6477NFQ5WGCU2XZ

not attested not anchored not stored refs pending

Curvature of surfaces in euclidean 3-space: philosophical analysis of Gauss' Theorema Egregium

Joel Merker (LM-Orsay)

arxiv:1402.1018 v1 · 2014-02-05 · math.HO · math.DG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{22LGS7KEKNZ6477NFQ5WGCU2XZ}

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	2026-05-18T03:00:01.978989Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d696697d445373ee7fed2c3b630a9abe5464bab35e1f0b74ab713fe05d73974c

Aliases

arxiv: 1402.1018 · arxiv_version: 1402.1018v1 · doi: 10.48550/arxiv.1402.1018 · pith_short_12: 22LGS7KEKNZ6 · pith_short_16: 22LGS7KEKNZ6477N · pith_short_8: 22LGS7KE

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/22LGS7KEKNZ6477NFQ5WGCU2XZ \
  | 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: d696697d445373ee7fed2c3b630a9abe5464bab35e1f0b74ab713fe05d73974c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f70704e4b8d380dd1f5dbd71a85f0b8b7fda689e45e9cf8b80fcccf4727fe721",
    "cross_cats_sorted": [
      "math.DG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.HO",
    "submitted_at": "2014-02-05T11:46:48Z",
    "title_canon_sha256": "8c3f3c3e83e3cda80aa84e9ffef77e6c666918224bf3757911fa7362780e3c43"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1402.1018",
    "kind": "arxiv",
    "version": 1
  }
}