Pith Number

pith:ZYRRZHYP

pith:1999:ZYRRZHYPFLFJHU2DBWQI47LVPJ

not attested not anchored not stored refs pending

Hybrid Neural Networks for Frequency Estimation of Unevenly Sampled Data

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

arxiv:astro-ph/9906098 v1 · 1999-06-07 · 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{ZYRRZHYPFLFJHU2DBWQI47LVPJ}

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	2026-05-18T00:58:09.108571Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ce231c9f0f2aca93d3430da08e7d757a52e8b94f2a6c178f466cf22273b7de5d

Aliases

arxiv: astro-ph/9906098 · arxiv_version: astro-ph/9906098v1 · doi: 10.48550/arxiv.astro-ph/9906098 · pith_short_12: ZYRRZHYPFLFJ · pith_short_16: ZYRRZHYPFLFJHU2D · pith_short_8: ZYRRZHYP

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/ZYRRZHYPFLFJHU2DBWQI47LVPJ \
  | 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: ce231c9f0f2aca93d3430da08e7d757a52e8b94f2a6c178f466cf22273b7de5d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fce37a6fc3225fb22cdb28b231d68068f66b04d1a0deef7de4fc3667a61cf7dc",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1999-06-07T10:08:01Z",
    "title_canon_sha256": "5abe2ac54f2c329e3468fec632d91336f8d4f4eaf139e272c4947a8b2134c96f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9906098",
    "kind": "arxiv",
    "version": 1
  }
}