Pith Number

pith:2BSYEIRY

pith:2012:2BSYEIRYSLSOHCEHGRICELQZJS

not attested not anchored not stored refs pending

The spectral theory of the Fourier operator truncated on the positive half-axis

Victor Katsnelson

arxiv:1208.3817 v1 · 2012-08-19 · math.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2BSYEIRYSLSOHCEHGRICELQZJS}

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	2026-05-18T03:48:26.105146Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d06582223892e4e388873450222e194cb02f0ef91592b702a22f1ed5113ae2bf

Aliases

arxiv: 1208.3817 · arxiv_version: 1208.3817v1 · doi: 10.48550/arxiv.1208.3817 · pith_short_12: 2BSYEIRYSLSO · pith_short_16: 2BSYEIRYSLSOHCEH · pith_short_8: 2BSYEIRY

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/2BSYEIRYSLSOHCEHGRICELQZJS \
  | 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: d06582223892e4e388873450222e194cb02f0ef91592b702a22f1ed5113ae2bf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "897c386b56e808646c9e09039b939c1af2428ecdc18ed9c4ca46101fb6c46721",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.SP",
    "submitted_at": "2012-08-19T09:15:11Z",
    "title_canon_sha256": "c00c60980e7247d10fae78b4b24aa8c38fb5a36ba8c48cfc4a18b7159426eda1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1208.3817",
    "kind": "arxiv",
    "version": 1
  }
}