Pith Number

pith:2BGXI2IN

pith:2005:2BGXI2INQBZM3UMOLKXYSF2APP

not attested not anchored not stored refs pending

The peculiar type Ib supernova 2005bf: explosion of a massive He star with a thin hydrogen envelope?

D. K. Sahu, G. C. Anupama, J. Deng, K. Nomoto, M. Tanaka, N. Tominaga, P. A. Mazzali, T. P. Prabhu

arxiv:astro-ph/0509625 v1 · 2005-09-21 · 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{2BGXI2INQBZM3UMOLKXYSF2APP}

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	2026-05-18T01:07:30.564892Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d04d74690d8072cdd18e5aaf8917407bf0cd65fa28fd5ee38aa3b881477ee8a9

Aliases

arxiv: astro-ph/0509625 · arxiv_version: astro-ph/0509625v1 · doi: 10.48550/arxiv.astro-ph/0509625 · pith_short_12: 2BGXI2INQBZM · pith_short_16: 2BGXI2INQBZM3UMO · pith_short_8: 2BGXI2IN

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/2BGXI2INQBZM3UMOLKXYSF2APP \
  | 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: d04d74690d8072cdd18e5aaf8917407bf0cd65fa28fd5ee38aa3b881477ee8a9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6e8d27eafbe57bf5003cef019ef792a664d504f1ed328ad9f8a267274c76eb5b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-09-21T11:13:53Z",
    "title_canon_sha256": "5580c4acfd143890dc975e3c97bc709ceb3cc56589674b2c25b8c5f0d79c4131"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0509625",
    "kind": "arxiv",
    "version": 1
  }
}