Pith Number

pith:ZU2WLESY

pith:2000:ZU2WLESYRKPP7C7FI57WESE5OH

not attested not anchored not stored refs pending

Cosmological-Model-Parameter Determination from Satellite-Acquired Type Ia and IIP Supernova Data

Bharat Ratra, Peter Nugent, Silviu Podariu

arxiv:astro-ph/0008281 v2 · 2000-08-17 · 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{ZU2WLESYRKPP7C7FI57WESE5OH}

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	2026-07-04T16:17:03.358849Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cd356592588a9eff8be5477f62489d71e538596ab29f75e0db3b9a613848fddc

Aliases

arxiv: astro-ph/0008281 · arxiv_version: astro-ph/0008281v2 · doi: 10.48550/arxiv.astro-ph/0008281 · pith_short_12: ZU2WLESYRKPP · pith_short_16: ZU2WLESYRKPP7C7F · pith_short_8: ZU2WLESY

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/ZU2WLESYRKPP7C7FI57WESE5OH \
  | 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: cd356592588a9eff8be5477f62489d71e538596ab29f75e0db3b9a613848fddc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d2d49b8429729cefa30273b582c0208960eada9d8b99ac67a6c694d7004b9cc7",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-08-17T22:11:22Z",
    "title_canon_sha256": "a2fbb3dd88304bc5bf129029add34556a45ddd225261ecf8ad17cd1f681f1ef9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0008281",
    "kind": "arxiv",
    "version": 2
  }
}