Pith Number

pith:LKB4KI7D

pith:2002:LKB4KI7DJD7ZNNDXKOEI35WMF5

not attested not anchored not stored refs pending

The Axially Symmetric Ejecta of Supernova 1987A

A. Khokhlov, A. V. Filippenko, C. Fransson, C. S. J. Pun, D. Baade, D. Branch, G. Sonneborn, J. C. Wheeler, L. Wang, M. M. Phillips, N.B. Suntzeff, N. Panagia, P. Challis, P. Garnavich, P. Hoeflich, P. Lundqvist, R. McCray, R. P. Kirshner

arxiv:astro-ph/0205337 v1 · 2002-05-20 · 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{LKB4KI7DJD7ZNNDXKOEI35WMF5}

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	2026-07-04T16:30:02.560371Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5a83c523e348ff96b47753888df6cc2f4efa06cf007ef8923f07eb76c4c1f0ba

Aliases

arxiv: astro-ph/0205337 · arxiv_version: astro-ph/0205337v1 · doi: 10.48550/arxiv.astro-ph/0205337 · pith_short_12: LKB4KI7DJD7Z · pith_short_16: LKB4KI7DJD7ZNNDX · pith_short_8: LKB4KI7D

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/LKB4KI7DJD7ZNNDXKOEI35WMF5 \
  | 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: 5a83c523e348ff96b47753888df6cc2f4efa06cf007ef8923f07eb76c4c1f0ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "02e70026cfdd26de7d037458c047511b510fa5556122493df63621a8820aeec2",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2002-05-20T21:30:49Z",
    "title_canon_sha256": "689fb752c02a7162943983563db44714c2a9ce8b90b0d17a89cf8b776d3e5d71"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0205337",
    "kind": "arxiv",
    "version": 1
  }
}