Pith Number

pith:7RKSFO2B

pith:2003:7RKSFO2BAACXQ55ZHJOFTGA4WN

not attested not anchored not stored refs pending

Evidence for an asymptotic giant branch star in the progenitor system of a type Ia supernova

E. M. Green, Jose Maza, Kevin Krisciunas, L. E. Gonzalez, Mario Hamuy, Miguel Roth, M. M. Phillips, Nicholas B. Suntzeff, Nidia Morrell, P. J. McCarthy, S. E. Persson

arxiv:astro-ph/0306270 v2 · 2003-06-12 · 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{7RKSFO2BAACXQ55ZHJOFTGA4WN}

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	2026-05-18T01:40:38.717659Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc5522bb4100057877b93a5c59981cb34c3fb18d29c0ba628e38c61aae515cc7

Aliases

arxiv: astro-ph/0306270 · arxiv_version: astro-ph/0306270v2 · doi: 10.48550/arxiv.astro-ph/0306270 · pith_short_12: 7RKSFO2BAACX · pith_short_16: 7RKSFO2BAACXQ55Z · pith_short_8: 7RKSFO2B

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/7RKSFO2BAACXQ55ZHJOFTGA4WN \
  | 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: fc5522bb4100057877b93a5c59981cb34c3fb18d29c0ba628e38c61aae515cc7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "16c5ace49007bc09469f341a4fe4ffda56351c590cbaaec4bef56c4c120b984b",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-06-12T21:28:42Z",
    "title_canon_sha256": "00e274f48e7779f99be2fa8a8e01003db40264425b1077ea289e292e43d16838"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0306270",
    "kind": "arxiv",
    "version": 2
  }
}