Pith Number

pith:P6J5N6IJ

pith:2017:P6J5N6IJRC4TBJTX3PCYZSOIQ7

not attested not anchored not stored refs pending

The rigidity of totally nondegenerate model CR manifolds

Amir Hashemi, Masoud Sabzevari

arxiv:1702.03213 v2 · 2017-02-10 · 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{P6J5N6IJRC4TBJTX3PCYZSOIQ7}

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	2026-05-18T00:49:57.497226Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f93d6f90988b930a677dbc58cc9c887ee009d3531ac8fa96eadef3f2402ff8e

Aliases

arxiv: 1702.03213 · arxiv_version: 1702.03213v2 · doi: 10.48550/arxiv.1702.03213 · pith_short_12: P6J5N6IJRC4T · pith_short_16: P6J5N6IJRC4TBJTX · pith_short_8: P6J5N6IJ

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/P6J5N6IJRC4TBJTX3PCYZSOIQ7 \
  | 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: 7f93d6f90988b930a677dbc58cc9c887ee009d3531ac8fa96eadef3f2402ff8e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fbded059df98ee7894b1afbdb998b946a75e5f92cd4d8c9b4caffdc49cf17850",
    "cross_cats_sorted": [
      "math.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2017-02-10T15:22:52Z",
    "title_canon_sha256": "2103278ae114165e05037bfaea52466534fd180b331298b7ebe089a28d5c4d1f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.03213",
    "kind": "arxiv",
    "version": 2
  }
}