Pith Number

pith:Y64RUUD4

pith:2018:Y64RUUD4BEOYBQCYMWNK5Y2K5J

not attested not anchored not stored refs pending

A Fourier restriction theorem for a perturbed hyperbolic paraboloid

Ana Vargas, Detlef M\"uller, Stefan Buschenhenke

arxiv:1803.02711 v2 · 2018-03-07 · math.CA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Y64RUUD4BEOYBQCYMWNK5Y2K5J}

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	2026-05-17T23:41:37.223436Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c7b91a507c091d80c058659aaee34aea74ea220a6ef3825738b47564076b06cf

Aliases

arxiv: 1803.02711 · arxiv_version: 1803.02711v2 · doi: 10.48550/arxiv.1803.02711 · pith_short_12: Y64RUUD4BEOY · pith_short_16: Y64RUUD4BEOYBQCY · pith_short_8: Y64RUUD4

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/Y64RUUD4BEOYBQCYMWNK5Y2K5J \
  | 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: c7b91a507c091d80c058659aaee34aea74ea220a6ef3825738b47564076b06cf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8f7583e8d5babad44da777b8249cc27b1a2f2b7419d124fdbe6866def6be2e35",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.CA",
    "submitted_at": "2018-03-07T15:19:46Z",
    "title_canon_sha256": "fa077c6bb75426ac60a2d92a643ef9b19415d80be555bdfc5c8139a02092ca2a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.02711",
    "kind": "arxiv",
    "version": 2
  }
}