Pith Number

pith:XS6QCZMX

pith:1995:XS6QCZMXPZXGKJANVSSNMPO6N6

not attested not anchored not stored refs pending

A Luminous Companion to SGR 1806-20

Caltech), G. Neugebauer (Palomar Observatory, K. Matthews, M. H. van Kerkwijk, S. R. Kulkarni

arxiv:astro-ph/9502038 v1 · 1995-02-07 · 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{XS6QCZMXPZXGKJANVSSNMPO6N6}

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	2026-05-18T01:07:42.356931Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bcbd0165977e6e65240daca4d63dde6f883f43d182cbe7dbab5c8425257e7baa

Aliases

arxiv: astro-ph/9502038 · arxiv_version: astro-ph/9502038v1 · doi: 10.48550/arxiv.astro-ph/9502038 · pith_short_12: XS6QCZMXPZXG · pith_short_16: XS6QCZMXPZXGKJAN · pith_short_8: XS6QCZMX

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/XS6QCZMXPZXGKJANVSSNMPO6N6 \
  | 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: bcbd0165977e6e65240daca4d63dde6f883f43d182cbe7dbab5c8425257e7baa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c0df6f9645efcc98e42698d09ed6aae8eff6951c25a12db75c325a12f7d449db",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "1995-02-07T04:29:46Z",
    "title_canon_sha256": "e7a0938286624b215c2bbebf9eab285e1d5ca2228f906fa4ce0fc45c5102d2e2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/9502038",
    "kind": "arxiv",
    "version": 1
  }
}