Pith Number

pith:6OTVR5Z3

pith:2002:6OTVR5Z3J6JYEVYMXBTSG5EY7O

not attested not anchored not stored refs pending

Exceptionally Bright Type Ib Supernova 1991D

A. Pastorello, D. Branch, E. Baron, E. Cappellaro, L. Zampieri, M. Della Valle, M. Turatto, S. Benetti

arxiv:astro-ph/0205453 v1 · 2002-05-27 · 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{6OTVR5Z3J6JYEVYMXBTSG5EY7O}

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	2026-07-04T16:30:05.583733Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f3a758f73b4f9382570cb867237498fbbfc60c3d13635e529510a32b20c12c99

Aliases

arxiv: astro-ph/0205453 · arxiv_version: astro-ph/0205453v1 · doi: 10.48550/arxiv.astro-ph/0205453 · pith_short_12: 6OTVR5Z3J6JY · pith_short_16: 6OTVR5Z3J6JYEVYM · pith_short_8: 6OTVR5Z3

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/6OTVR5Z3J6JYEVYMXBTSG5EY7O \
  | 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: f3a758f73b4f9382570cb867237498fbbfc60c3d13635e529510a32b20c12c99

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "294c5985256fea721c639cea0f789b70693fdfcc66dbee362cda031e3c033754",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-05-27T08:34:16Z",
    "title_canon_sha256": "88312c37084ba56a4180647c8f28bc2baffe06c68ddc302119b09fbacfcc4a70"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0205453",
    "kind": "arxiv",
    "version": 1
  }
}