Pith Number

pith:OSEHFAYC

pith:2009:OSEHFAYCACSTFQRV7FTWJVC5PN

not attested not anchored not stored refs pending

On homogeneous and symmetric CR manifolds

Andrea Altomani, Costantino Medori, Mauro Nacinovich

arxiv:0910.4531 v1 · 2009-10-23 · math.DG · math.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OSEHFAYCACSTFQRV7FTWJVC5PN}

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	2026-05-18T04:33:04.329077Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

748872830200a532c235f96764d45d7b47130d3ea91731cb6520c07afd9c0e41

Aliases

arxiv: 0910.4531 · arxiv_version: 0910.4531v1 · doi: 10.48550/arxiv.0910.4531 · pith_short_12: OSEHFAYCACST · pith_short_16: OSEHFAYCACSTFQRV · pith_short_8: OSEHFAYC

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/OSEHFAYCACSTFQRV7FTWJVC5PN \
  | 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: 748872830200a532c235f96764d45d7b47130d3ea91731cb6520c07afd9c0e41

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4a61daab92ffa18a521628bbd9d15e02786792d2b71e3a34e5de2b825294a868",
    "cross_cats_sorted": [
      "math.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2009-10-23T15:20:06Z",
    "title_canon_sha256": "755276322059815e23696ddb8e10a96841f7dd31876534b0751cf94f133c2962"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0910.4531",
    "kind": "arxiv",
    "version": 1
  }
}