Pith Number

pith:FRNSR4CM

pith:2019:FRNSR4CMFGYH5LCPL46PMFJKIE

not attested not anchored not stored refs pending

On Distinguished local coordinates for locally homogeneous affine surfaces

E. Garc\'ia-R\'io, M. Brozos-V\'azquez, P. Gilkey

arxiv:1901.03523 v1 · 2019-01-11 · 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{FRNSR4CMFGYH5LCPL46PMFJKIE}

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	2026-05-17T23:56:31.019650Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2c5b28f04c29b07eac4f5f3cf6152a412f8e45fba918cc8187775e73cff4405c

Aliases

arxiv: 1901.03523 · arxiv_version: 1901.03523v1 · doi: 10.48550/arxiv.1901.03523 · pith_short_12: FRNSR4CMFGYH · pith_short_16: FRNSR4CMFGYH5LCP · pith_short_8: FRNSR4CM

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/FRNSR4CMFGYH5LCPL46PMFJKIE \
  | 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: 2c5b28f04c29b07eac4f5f3cf6152a412f8e45fba918cc8187775e73cff4405c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d799611b52af05911e36050e951551766107fbe78e2887744c3a41afce7ef36c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2019-01-11T09:30:48Z",
    "title_canon_sha256": "abc096bc210528eabfea58e355a5398b6014ea7fe433b616b6e4dd4e603ff2f9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.03523",
    "kind": "arxiv",
    "version": 1
  }
}