Pith Number

pith:GNEBYBNY

pith:2001:GNEBYBNY42NEH3X4KHAHMW5RFP

not attested not anchored not stored refs pending

A Very Radio-Loud Narrow-Line Seyfert 1: PKS 2004-447

Alicia Oshlack, Matthew Whiting, Rachel Webster

arxiv:astro-ph/0105213 v2 · 2001-05-14 · 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{GNEBYBNY42NEH3X4KHAHMW5RFP}

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	2026-07-04T16:23:23.037097Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

33481c05b8e69a43eefc51c0765bb12bfc6bc32e9b564ed268475aa865af91d6

Aliases

arxiv: astro-ph/0105213 · arxiv_version: astro-ph/0105213v2 · doi: 10.48550/arxiv.astro-ph/0105213 · pith_short_12: GNEBYBNY42NE · pith_short_16: GNEBYBNY42NEH3X4 · pith_short_8: GNEBYBNY

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/GNEBYBNY42NEH3X4KHAHMW5RFP \
  | 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: 33481c05b8e69a43eefc51c0765bb12bfc6bc32e9b564ed268475aa865af91d6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bbe31e351399d97f2420df678f34227a63380baed65ff2ba3490cae8cecd9b05",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2001-05-14T03:33:57Z",
    "title_canon_sha256": "b47cec54a825a5e15f0a234052312a0a3944027d4dd2b864378e0ff5e7da7d53"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0105213",
    "kind": "arxiv",
    "version": 2
  }
}