Pith Number

pith:5BRCM4Y5

pith:2005:5BRCM4Y55NCWQ6NKY7JJAIPK54

not attested not anchored not stored refs pending

OI Line Emission in the Quasar PG 1116+215

Kimiaki Kawara, Shinki Oyabu, Yoshiki Matsuoka, Yumihiko Tsuzuki, Yuzuru Yoshii

arxiv:astro-ph/0505578 v2 · 2005-05-29 · 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{5BRCM4Y55NCWQ6NKY7JJAIPK54}

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	2026-05-18T01:40:34.022756Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e86226731deb456879aac7d29021eaef08b516934b49cd17ed771b48cc3a3589

Aliases

arxiv: astro-ph/0505578 · arxiv_version: astro-ph/0505578v2 · doi: 10.48550/arxiv.astro-ph/0505578 · pith_short_12: 5BRCM4Y55NCW · pith_short_16: 5BRCM4Y55NCWQ6NK · pith_short_8: 5BRCM4Y5

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/5BRCM4Y55NCWQ6NKY7JJAIPK54 \
  | 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: e86226731deb456879aac7d29021eaef08b516934b49cd17ed771b48cc3a3589

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "14a7b395825ab4b1d9ab8618f9365adcd6ddbec0d822ebecfe498795c88d1235",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-05-29T05:04:49Z",
    "title_canon_sha256": "a03c048627e55fced9203539130040e35d7faa7f8e33288fa62f8984eb268d8a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0505578",
    "kind": "arxiv",
    "version": 2
  }
}