Pith Number

pith:I5G4Y5P2

pith:2000:I5G4Y5P2OZZRKCD4SH5AJALIMY

not attested not anchored not stored refs pending

Properties of Radio-Selected Broad Absorption-Line Quasars from the FIRST Survey

M.D. Gregg, M.S. Brotherton, N. Arav, R.H. Becker, R.L. White, S.A. Laurent-Meuleisen

arxiv:astro-ph/0002470 v1 · 2000-02-25 · 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{I5G4Y5P2OZZRKCD4SH5AJALIMY}

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	2026-05-18T02:40:36.866928Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

474dcc75fa767315087c91fa048168661cb3fac2aa240c5a788a9d475c66066b

Aliases

arxiv: astro-ph/0002470 · arxiv_version: astro-ph/0002470v1 · doi: 10.48550/arxiv.astro-ph/0002470 · pith_short_12: I5G4Y5P2OZZR · pith_short_16: I5G4Y5P2OZZRKCD4 · pith_short_8: I5G4Y5P2

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/I5G4Y5P2OZZRKCD4SH5AJALIMY \
  | 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: 474dcc75fa767315087c91fa048168661cb3fac2aa240c5a788a9d475c66066b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d12257608a8206da2ce1af7af81d002b9f876446c7ffa24a2619685eb56bfde6",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2000-02-25T01:17:39Z",
    "title_canon_sha256": "9801ecf8821175ecdc09dbe0224dcdacf51be19e77a84077946158d671a75631"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0002470",
    "kind": "arxiv",
    "version": 1
  }
}