Pith Number

pith:5V2RT53G

pith:2013:5V2RT53GHWVT5SOHJGP7UCIBLD

not attested not anchored not stored refs pending

The L-sectional curvature of S-manifolds

Alicia Prieto-Mart\'In, Luis M. Fern\'Andez, Mehmet Akif Akyol

arxiv:1302.1973 v3 · 2013-02-08 · 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{5V2RT53GHWVT5SOHJGP7UCIBLD}

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	2026-05-18T03:27:32.044338Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ed7519f7663dab3ec9c7499ffa090158cdbedd245d5ada337beb3513f602ccc5

Aliases

arxiv: 1302.1973 · arxiv_version: 1302.1973v3 · doi: 10.48550/arxiv.1302.1973 · pith_short_12: 5V2RT53GHWVT · pith_short_16: 5V2RT53GHWVT5SOH · pith_short_8: 5V2RT53G

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/5V2RT53GHWVT5SOHJGP7UCIBLD \
  | 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: ed7519f7663dab3ec9c7499ffa090158cdbedd245d5ada337beb3513f602ccc5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e37f47f3adea2e16714a1b64722c24dd7a270bd3dbb740bc9fa66452a267a0e2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2013-02-08T09:28:32Z",
    "title_canon_sha256": "670d50a0303b9f7488d7475d303758c3caa8c9afa3d9e078abbf15d91eb5daba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1302.1973",
    "kind": "arxiv",
    "version": 3
  }
}