Pith Number

pith:Q7ENDYRY

pith:2005:Q7ENDYRYH7P4RWKYRDBJDCNNWE

not attested not anchored not stored refs pending

Quantitative Spectroscopy of Photospheric-Phase Type II Supernovae

Luc Dessart (Steward Observatory, University of Arizona) John Hillier (University of Pittsburgh)

arxiv:astro-ph/0504028 v1 · 2005-04-01 · 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{Q7ENDYRYH7P4RWKYRDBJDCNNWE}

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

SN 2025aico: Early observations of a faint Type IIb supernova with a low-mass envelope

Receipt and verification

First computed	2026-07-04T16:51:50.719508Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

87c8d1e2383fdfc8d95888c29189adb13e2be4d413a409de5450cdd98a91a81e

Aliases

arxiv: astro-ph/0504028 · arxiv_version: astro-ph/0504028v1 · doi: 10.48550/arxiv.astro-ph/0504028 · pith_short_12: Q7ENDYRYH7P4 · pith_short_16: Q7ENDYRYH7P4RWKY · pith_short_8: Q7ENDYRY

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/Q7ENDYRYH7P4RWKYRDBJDCNNWE \
  | 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: 87c8d1e2383fdfc8d95888c29189adb13e2be4d413a409de5450cdd98a91a81e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "65a6cfeb1f4c6b5bd106919ad05f6b62470e69eb5b85621ea361cd9ae5bfdffd",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-04-01T17:00:52Z",
    "title_canon_sha256": "f7fee4f3fd68670f7ac6c6bd8f88c6a67e722b99467bfc2850d3e066b5e146a3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0504028",
    "kind": "arxiv",
    "version": 1
  }
}