Pith Number

pith:2SY23L2R

pith:2016:2SY23L2RMOOJBHWR4A3BDPVGT7

not attested not anchored not stored refs pending

Gaussian curvature and gyroscopes

Graham Cox, Mark Levi

arxiv:1607.03217 v2 · 2016-07-12 · math.DS · math-ph · math.DG · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2SY23L2RMOOJBHWR4A3BDPVGT7}

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	2026-05-18T00:45:34.767058Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d4b1adaf51639c909ed1e03611bea69fe420c4bf9bd2185074466d55665db103

Aliases

arxiv: 1607.03217 · arxiv_version: 1607.03217v2 · doi: 10.48550/arxiv.1607.03217 · pith_short_12: 2SY23L2RMOOJ · pith_short_16: 2SY23L2RMOOJBHWR · pith_short_8: 2SY23L2R

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/2SY23L2RMOOJBHWR4A3BDPVGT7 \
  | 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: d4b1adaf51639c909ed1e03611bea69fe420c4bf9bd2185074466d55665db103

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "524a3f1e86b7a20c0a30b33c389d2367c764fea2610811b5537e0d5e9ac4af3f",
    "cross_cats_sorted": [
      "math-ph",
      "math.DG",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DS",
    "submitted_at": "2016-07-12T02:10:34Z",
    "title_canon_sha256": "978123ec4d5d6855e9b9a044dce775f4e38aee208d34fe0a087a7e6e08bc3ffa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1607.03217",
    "kind": "arxiv",
    "version": 2
  }
}