Pith Number

pith:73EULOVD

pith:2019:73EULOVDOWJ4DA3B6PIJOCNEDA

not attested not anchored not stored refs pending

Restriction of 3D arithmetic Laplace eigenfunctions to a plane

Riccardo Walter Maffucci

arxiv:1907.09223 v1 · 2019-07-22 · math.NT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{73EULOVDOWJ4DA3B6PIJOCNEDA}

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	2026-05-17T23:39:59.790426Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fec945baa37593c18361f3d09709a4181f51be82d647795db988b0202cd2c587

Aliases

arxiv: 1907.09223 · arxiv_version: 1907.09223v1 · doi: 10.48550/arxiv.1907.09223 · pith_short_12: 73EULOVDOWJ4 · pith_short_16: 73EULOVDOWJ4DA3B · pith_short_8: 73EULOVD

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/73EULOVDOWJ4DA3B6PIJOCNEDA \
  | 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: fec945baa37593c18361f3d09709a4181f51be82d647795db988b0202cd2c587

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f2e732c3761c73f9a03085a98907214429549d0092cd21a178abe60a9a189666",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NT",
    "submitted_at": "2019-07-22T10:47:05Z",
    "title_canon_sha256": "273ee3304d2059d7368001976d90c1e0d7d4f252c4674ff7bb653eaea05ade05"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.09223",
    "kind": "arxiv",
    "version": 1
  }
}