Pith Number

pith:NFOK4IXE

pith:2015:NFOK4IXESTKTZT5CY5ZG5P3ARX

not attested not anchored not stored refs pending

A More Accurate Fourier Transform

Elya Courtney, Michael Courtney

arxiv:1507.01832 v1 · 2015-07-06 · physics.data-an

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NFOK4IXESTKTZT5CY5ZG5P3ARX}

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	2026-05-18T01:37:12.293023Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

695cae22e494d53ccfa2c7726ebf608dd7763f42c9e6607ad2ea10092b0f87cc

Aliases

arxiv: 1507.01832 · arxiv_version: 1507.01832v1 · doi: 10.48550/arxiv.1507.01832 · pith_short_12: NFOK4IXESTKT · pith_short_16: NFOK4IXESTKTZT5C · pith_short_8: NFOK4IXE

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/NFOK4IXESTKTZT5CY5ZG5P3ARX \
  | 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: 695cae22e494d53ccfa2c7726ebf608dd7763f42c9e6607ad2ea10092b0f87cc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1086323584ecd692671b881e189c8e30810137b6b81d5c63884bd4c5aea20ce9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.data-an",
    "submitted_at": "2015-07-06T18:00:51Z",
    "title_canon_sha256": "d6eb302440c75cb423b41edc467821ee279a17f82511d4e2f76b24c6ef644444"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1507.01832",
    "kind": "arxiv",
    "version": 1
  }
}