Pith Number

pith:RNJYNOOQ

pith:2013:RNJYNOOQGBF67GWRFS3MSFORSG

not attested not anchored not stored refs pending

Estimating Spectral Density Functions for Sturm-Liouville problems with two singular endpoints

Charles Fulton, David Pearson, Steven Pruess

arxiv:1303.2989 v1 · 2013-03-12 · 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{RNJYNOOQGBF67GWRFS3MSFORSG}

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	2026-05-18T03:31:07.406637Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8b5386b9d0304bef9ad12cb6c915d19194349c0c184c5f0f6e2da3f97e87714a

Aliases

arxiv: 1303.2989 · arxiv_version: 1303.2989v1 · doi: 10.48550/arxiv.1303.2989 · pith_short_12: RNJYNOOQGBF6 · pith_short_16: RNJYNOOQGBF67GWR · pith_short_8: RNJYNOOQ

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/RNJYNOOQGBF67GWRFS3MSFORSG \
  | 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: 8b5386b9d0304bef9ad12cb6c915d19194349c0c184c5f0f6e2da3f97e87714a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3cb0286919bcfdf99a77544c7097c8f9c42a23685aa20b9bd6b4f4b960e8ba57",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2013-03-12T19:23:02Z",
    "title_canon_sha256": "1303880d8f7bcbdc68499829f6fbdcc342cdb0430ab7698d1681a018f6da0ade"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.2989",
    "kind": "arxiv",
    "version": 1
  }
}