Pith Number

pith:LRPY5WX4

pith:2003:LRPY5WX4LEJPGKPS74RH56LP4T

not attested not anchored not stored refs pending

X-ray observations of 4 Draconis: symbiotic binary or cataclysmic triple?

Domitilla de Martino, Koji Mukai, Peter J. Wheatley

arxiv:astro-ph/0309410 v1 · 2003-09-15 · 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{LRPY5WX4LEJPGKPS74RH56LP4T}

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	2026-05-18T01:07:33.319383Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5c5f8edafc5912f329f2ff227ef96fe4fdf3c3268145d1627fcfae7848704635

Aliases

arxiv: astro-ph/0309410 · arxiv_version: astro-ph/0309410v1 · doi: 10.48550/arxiv.astro-ph/0309410 · pith_short_12: LRPY5WX4LEJP · pith_short_16: LRPY5WX4LEJPGKPS · pith_short_8: LRPY5WX4

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/LRPY5WX4LEJPGKPS74RH56LP4T \
  | 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: 5c5f8edafc5912f329f2ff227ef96fe4fdf3c3268145d1627fcfae7848704635

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e2bf77f3502bdeb2af795cd26070b0164b4a97488de7651d9bdd4c32196e6831",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2003-09-15T20:02:43Z",
    "title_canon_sha256": "c9a8a137aaaa93812617ec0306111802c596a03bcb815300f58e82836e5befa8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0309410",
    "kind": "arxiv",
    "version": 1
  }
}