Pith Number

pith:5C54K2CK

pith:2004:5C54K2CK7UZMUPBNEMH5DH23ZR

not attested not anchored not stored refs pending

Hubble Space Telescope and Ground-Based Observations of SN 1993J and SN 1998S: CNO Processing in the Progenitors

Alexei V. Filippenko, Bruno Leibundgut, Cecilia Kozma, Claes Fransson, C. S. J. Pun, Douglas C. Leonard, E. Baron, J. Craig Wheeler, Lifan Wang, Peter Garnavich, Peter Lundqvist, Peter M. Challis, Robert P. Kirshner, Roger A. Chevalier, Saurabh Jha, Thomas Matheson

arxiv:astro-ph/0409439 v1 · 2004-09-17 · 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{5C54K2CK7UZMUPBNEMH5DH23ZR}

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.

Cited by

1 paper in Pith

A 14-year-old Mystery: The Peculiar Case of the Engine-driven SN 2012ap

Receipt and verification

First computed	2026-07-04T16:44:42.963719Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e8bbc5684afd32ca3c2d230fd19f5bcc51cf37ecad7b74b9cadccb31b10958c5

Aliases

arxiv: astro-ph/0409439 · arxiv_version: astro-ph/0409439v1 · doi: 10.48550/arxiv.astro-ph/0409439 · pith_short_12: 5C54K2CK7UZM · pith_short_16: 5C54K2CK7UZMUPBN · pith_short_8: 5C54K2CK

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/5C54K2CK7UZMUPBNEMH5DH23ZR \
  | 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: e8bbc5684afd32ca3c2d230fd19f5bcc51cf37ecad7b74b9cadccb31b10958c5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0a60e2312139cac00678b93da7e51734c39cd420c2157cdab9ee2995322b1ee6",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-09-17T18:30:22Z",
    "title_canon_sha256": "16f3012a2d0327eccf486d7aae48065ba87ce508e18c31e0b849d83caaec7a5b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0409439",
    "kind": "arxiv",
    "version": 1
  }
}