Pith Number

pith:OQILTROY

pith:2005:OQILTROY34JOMHYYCS43FVSJNO

not attested not anchored not stored refs pending

Type Ia Supernova Spectral Line Ratios as Luminosity Indicators

David Branch, E. Baron, G. Smadja, Peter H. Hauschildt, Sebastien Bongard

arxiv:astro-ph/0512229 v1 · 2005-12-08 · 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{OQILTROY34JOMHYYCS43FVSJNO}

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	2026-07-04T15:19:37.594251Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7410b9c5d8df12e61f1814b9b2d6496baf91c81d5cc4be70b2ec874c2e9b8fbd

Aliases

arxiv: astro-ph/0512229 · arxiv_version: astro-ph/0512229v1 · doi: 10.48550/arxiv.astro-ph/0512229 · pith_short_12: OQILTROY34JO · pith_short_16: OQILTROY34JOMHYY · pith_short_8: OQILTROY

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/OQILTROY34JOMHYYCS43FVSJNO \
  | 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: 7410b9c5d8df12e61f1814b9b2d6496baf91c81d5cc4be70b2ec874c2e9b8fbd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aee0928860f587ca9c3b748008ab121c85a27619f0bec22080fb8ca95346e7cc",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-12-08T17:56:19Z",
    "title_canon_sha256": "27171eacd65423df9b3a97f245c835cb50da9adc80f46547f72d902f3856fd49"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0512229",
    "kind": "arxiv",
    "version": 1
  }
}