Pith Number

pith:5PY4FFKB

pith:2014:5PY4FFKBK72AWJG6QTAPKTLU5D

not attested not anchored not stored refs pending

Parameter selection and numerical approximation properties of Fourier extensions from fixed data

Ben Adcock, Joseph Ruan

arxiv:1405.4320 v1 · 2014-05-16 · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5PY4FFKBK72AWJG6QTAPKTLU5D}

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	2026-05-18T01:43:11.472591Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ebf1c2954157f40b24de84c0f54d74e8fd661f96943ad99144e9575952edfe71

Aliases

arxiv: 1405.4320 · arxiv_version: 1405.4320v1 · doi: 10.48550/arxiv.1405.4320 · pith_short_12: 5PY4FFKBK72A · pith_short_16: 5PY4FFKBK72AWJG6 · pith_short_8: 5PY4FFKB

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/5PY4FFKBK72AWJG6QTAPKTLU5D \
  | 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: ebf1c2954157f40b24de84c0f54d74e8fd661f96943ad99144e9575952edfe71

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "18c9dd446d2ff05eeafc67a41b937177e98aab4697c102380fc9845307a845d0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2014-05-16T22:02:29Z",
    "title_canon_sha256": "99712261985ca8c594db99603ef2f7bb7d55eacf15896b70907b21677c1370ae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.4320",
    "kind": "arxiv",
    "version": 1
  }
}