Pith Number

pith:RUKNOMKQ

pith:2013:RUKNOMKQEBGT5RHCRG2LFLNPPG

not attested not anchored not stored refs pending

Stationary discs for smooth hypersurfaces of finite type and finite jet determination

Florian Bertrand, Giuseppe Della Sala

arxiv:1307.8364 v1 · 2013-07-31 · 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{RUKNOMKQEBGT5RHCRG2LFLNPPG}

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	2026-05-18T03:17:01.378576Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8d14d73150204d3ec4e289b4b2adaf79aa5b7838bc39193079ff38c68c8481ac

Aliases

arxiv: 1307.8364 · arxiv_version: 1307.8364v1 · doi: 10.48550/arxiv.1307.8364 · pith_short_12: RUKNOMKQEBGT · pith_short_16: RUKNOMKQEBGT5RHC · pith_short_8: RUKNOMKQ

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/RUKNOMKQEBGT5RHCRG2LFLNPPG \
  | 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: 8d14d73150204d3ec4e289b4b2adaf79aa5b7838bc39193079ff38c68c8481ac

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "846ada997b1a9f6fdbf7c076e11bd47f25bdfb97531cd231db876bc03bcb1bb9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CV",
    "submitted_at": "2013-07-31T15:53:05Z",
    "title_canon_sha256": "200612f82cdcfb5b5a9d7f578eb533c535207c03bf6332e05946c5abb17dbd6b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.8364",
    "kind": "arxiv",
    "version": 1
  }
}