Pith Number

pith:TORU4XR4

pith:2001:TORU4XR46Z5E4RZ7CICBD5UZDK

not attested not anchored not stored refs pending

The composition of circumstellar gas and dust in 51 Oph

C. Waelkens, G. Meeus, J. Cami, L.B.F.M. Waters, M.E. van den Ancker

arxiv:astro-ph/0102281 v1 · 2001-02-15 · 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{TORU4XR46Z5E4RZ7CICBD5UZDK}

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	2026-05-18T01:07:46.038488Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9ba34e5e3cf67a4e473f120411f6991ab8e859b8e0e0a7185b6d8318e9dd7439

Aliases

arxiv: astro-ph/0102281 · arxiv_version: astro-ph/0102281v1 · doi: 10.48550/arxiv.astro-ph/0102281 · pith_short_12: TORU4XR46Z5E · pith_short_16: TORU4XR46Z5E4RZ7 · pith_short_8: TORU4XR4

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/TORU4XR46Z5E4RZ7CICBD5UZDK \
  | 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: 9ba34e5e3cf67a4e473f120411f6991ab8e859b8e0e0a7185b6d8318e9dd7439

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "39ebd6c987c292da35b37e81dedfa0d76a1db4fd0a955677a228fb88b9d99291",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-02-15T18:36:24Z",
    "title_canon_sha256": "a1865ab33d5104a5db829d766aba7622bee1936a1d36044e1f79bcf6feae690f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0102281",
    "kind": "arxiv",
    "version": 1
  }
}