Pith Number

pith:H3MR5WL4

pith:2000:H3MR5WL4OW5ENHVCH5PBVFJP3E

not attested not anchored not stored refs pending

Optical Spectroscopy of Supernova 1993J During Its First 2500 Days

A. J. Barth, A. V. Filippenko, C. J. Lonsdale, D. C. Koo, D. C. Leonard, D. Fisher, D. Schlegel, D. S. Finley, G. D. Wirth, H. E. Smith, H. Spinrad, L. C. Ho, M. A. Bershady, M. Davis, R. A. Gonzalez, S. L. Hawley, T. Matheson, W. Li

arxiv:astro-ph/0006263 v1 · 2000-06-19 · 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{H3MR5WL4OW5ENHVCH5PBVFJP3E}

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

Neutron star-companion interaction in core collapse supernovae. Population synthesis based on detailed binary evolution models

Receipt and verification

First computed	2026-07-04T16:16:48.887137Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3ed91ed97c75ba469ea23f5e1a952fd939f7cc3cdf5eaefd9088d3e0bd4641e5

Aliases

arxiv: astro-ph/0006263 · arxiv_version: astro-ph/0006263v1 · doi: 10.48550/arxiv.astro-ph/0006263 · pith_short_12: H3MR5WL4OW5E · pith_short_16: H3MR5WL4OW5ENHVC · pith_short_8: H3MR5WL4

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/H3MR5WL4OW5ENHVCH5PBVFJP3E \
  | 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: 3ed91ed97c75ba469ea23f5e1a952fd939f7cc3cdf5eaefd9088d3e0bd4641e5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d286f3e46f8b8b1ecb4d02a25385b60f9f7a9fcb208f30b9c503fdd760f74152",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-06-19T23:31:11Z",
    "title_canon_sha256": "1d9e78042113f672eceed3a529e17560d335b61e1c23b63f646d23a15b2622c0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0006263",
    "kind": "arxiv",
    "version": 1
  }
}