Pith Number

pith:OTNAKGUA

pith:1999:OTNAKGUABEVNAT3XDNQ2QRWKC3

not attested not anchored not stored refs pending

Neural Networks for Spectral Analysis of Unevenly Sampled Data

A. Ciaramella, F. Barone, L. Milano, R. Tagliaferri

arxiv:astro-ph/9906181 v2 · 1999-06-10 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OTNAKGUABEVNAT3XDNQ2QRWKC3}

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	2026-07-04T14:16:47.292629Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

74da051a80092ad04f771b61a846ca16e734e00f4e2443acd511de5c821bd434

Aliases

arxiv: astro-ph/9906181 · arxiv_version: astro-ph/9906181v2 · doi: 10.48550/arxiv.astro-ph/9906181 · pith_short_12: OTNAKGUABEVN · pith_short_16: OTNAKGUABEVNAT3X · pith_short_8: OTNAKGUA

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/OTNAKGUABEVNAT3XDNQ2QRWKC3 \
  | 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: 74da051a80092ad04f771b61a846ca16e734e00f4e2443acd511de5c821bd434

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ee80537246c2583164a82e139d3a6789931b6f2c3bddf701837a6b58e3ed4f84",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-06-10T07:25:17Z",
    "title_canon_sha256": "43c7d93263bc39fa4c9e51ae105dee0ac413031e7365acb2ed3cd8b6fee181e6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9906181",
    "kind": "arxiv",
    "version": 2
  }
}