Pith Number

pith:LZUQR3M3

pith:2013:LZUQR3M36XT7J5AANKSYZZ2PLR

not attested not anchored not stored refs pending

A spinor description of flat surfaces in R^4

Pierre Bayard

arxiv:1310.3326 v1 · 2013-10-12 · 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{LZUQR3M36XT7J5AANKSYZZ2PLR}

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	2026-05-18T03:10:36.101111Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5e6908ed9bf5e7f4f4006aa58ce74f5c7def717ab2e0f217fd3b45f7656994f9

Aliases

arxiv: 1310.3326 · arxiv_version: 1310.3326v1 · doi: 10.48550/arxiv.1310.3326 · pith_short_12: LZUQR3M36XT7 · pith_short_16: LZUQR3M36XT7J5AA · pith_short_8: LZUQR3M3

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/LZUQR3M36XT7J5AANKSYZZ2PLR \
  | 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: 5e6908ed9bf5e7f4f4006aa58ce74f5c7def717ab2e0f217fd3b45f7656994f9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3b24c70cf446809ff8971836211bcbb4b6427159bc746d9d3c0a4c09278d82c2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2013-10-12T02:01:56Z",
    "title_canon_sha256": "b36a804160972dfcc14d3a4ce007ae5a365d8e7b1b323b374be40570f9f936fd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1310.3326",
    "kind": "arxiv",
    "version": 1
  }
}