Pith Number

pith:VUHFJ6RJ

pith:2004:VUHFJ6RJPJE6D7YJHVR3ATDCS3

not attested not anchored not stored refs pending

Direct Analysis of Spectra of the Peculiar Type Ia Supernova 2000cx

A. V. Filippenko, D. Branch, D. Kasen, E. Baron, K. Hatano, K. Nomoto, R. C. Thomas, R. J. Rudy, W. Li

arxiv:astro-ph/0401324 v1 · 2004-01-15 · 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{VUHFJ6RJPJE6D7YJHVR3ATDCS3}

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	2026-07-04T16:42:51.495938Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ad0e54fa297a49e1ff093d63b04c6296fe813e77e0fac6c5ebc7154c05f74193

Aliases

arxiv: astro-ph/0401324 · arxiv_version: astro-ph/0401324v1 · doi: 10.48550/arxiv.astro-ph/0401324 · pith_short_12: VUHFJ6RJPJE6 · pith_short_16: VUHFJ6RJPJE6D7YJ · pith_short_8: VUHFJ6RJ

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/VUHFJ6RJPJE6D7YJHVR3ATDCS3 \
  | 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: ad0e54fa297a49e1ff093d63b04c6296fe813e77e0fac6c5ebc7154c05f74193

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1eec950407300e61e7bc5b346dfbae2cfe8c74379854166854b7ce61727f56cb",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2004-01-15T22:35:32Z",
    "title_canon_sha256": "08e91270536e84bbd19596ad0f07487976055b18d39587695cb33bcb75de1695"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0401324",
    "kind": "arxiv",
    "version": 1
  }
}