Pith Number

pith:YNZD4FNE

pith:1997:YNZD4FNEOHMHOTLEB2GOHVLP7T

not attested not anchored not stored refs pending

Near-Infrared Spectroscopy of Molecular Filaments in the Reflection Nebula NGC 7023

Joseph L. Hora (Institute for Astronomy, K. Sellgren (Ohio State), Paul Martini, University of Hawaii)

arxiv:astro-ph/9702091 v1 · 1997-02-11 · 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{YNZD4FNEOHMHOTLEB2GOHVLP7T}

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	2026-07-04T16:02:52.042977Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c3723e15a471d8774d640e8ce3d56ffcee874b794baf137d19cad5658116e3d5

Aliases

arxiv: astro-ph/9702091 · arxiv_version: astro-ph/9702091v1 · doi: 10.48550/arxiv.astro-ph/9702091 · pith_short_12: YNZD4FNEOHMH · pith_short_16: YNZD4FNEOHMHOTLE · pith_short_8: YNZD4FNE

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/YNZD4FNEOHMHOTLEB2GOHVLP7T \
  | 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: c3723e15a471d8774d640e8ce3d56ffcee874b794baf137d19cad5658116e3d5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c0e41b0fa3cc977b229953be40f40bedc562080e548d2ae3ca6ae2804d063dc3",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1997-02-11T18:17:10Z",
    "title_canon_sha256": "fc8f643acadf78157684b85dc8f9f22015e1fa2496222b330a8244dacf03b1d9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9702091",
    "kind": "arxiv",
    "version": 1
  }
}