Pith Number

pith:4S5SU3I6

pith:2009:4S5SU3I6ZP3B47SBODCX5LI5FY

not attested not anchored not stored refs pending

Modelling the binary progenitor of supernova 1993J

2), (2) Centre for Stellar, Cambridge, John J. Eldridge (1) ((1) Institute of Astronomy, Monash University), Planetary Astrophysics, Richard J. Stancliffe (1

arxiv:0904.0282 v1 · 2009-04-02 · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4S5SU3I6ZP3B47SBODCX5LI5FY}

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	2026-05-18T02:14:08.115278Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e4bb2a6d1ecbf61e7e4170c57ead1d2e2d31a4b31f48e6a25f580682c0505dd5

Aliases

arxiv: 0904.0282 · arxiv_version: 0904.0282v1 · doi: 10.48550/arxiv.0904.0282 · pith_short_12: 4S5SU3I6ZP3B · pith_short_16: 4S5SU3I6ZP3B47SB · pith_short_8: 4S5SU3I6

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/4S5SU3I6ZP3B47SBODCX5LI5FY \
  | 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: e4bb2a6d1ecbf61e7e4170c57ead1d2e2d31a4b31f48e6a25f580682c0505dd5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2c2743195daf4b6987d31c9116344872ceb61521405e3ac66b72dce59698d789",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2009-04-02T01:01:11Z",
    "title_canon_sha256": "ee558e80ee90c2ac2655c5efdd4b43f79434dee07c59e13da84d90dac0144cbe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0904.0282",
    "kind": "arxiv",
    "version": 1
  }
}