Pith Number

pith:HAE6W2JY

pith:2009:HAE6W2JYHAIL3FEGDCMW2FT663

not attested not anchored not stored refs pending

FR II Quasars: Infrared Properties, Star Formation Rates, and Extended Ionized Gas

(2) IfA Hawaii), Alan Stockton (2) ((1) Caltech, Hai Fu (1)

arxiv:0902.1714 v1 · 2009-02-10 · astro-ph.CO

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HAE6W2JYHAIL3FEGDCMW2FT663}

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	2026-05-18T04:29:16.668513Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3809eb69383810bd948618996d167ef6e1789457dbf174c7ca049b40d8051513

Aliases

arxiv: 0902.1714 · arxiv_version: 0902.1714v1 · doi: 10.48550/arxiv.0902.1714 · pith_short_12: HAE6W2JYHAIL · pith_short_16: HAE6W2JYHAIL3FEG · pith_short_8: HAE6W2JY

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/HAE6W2JYHAIL3FEGDCMW2FT663 \
  | 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: 3809eb69383810bd948618996d167ef6e1789457dbf174c7ca049b40d8051513

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "049c7744228c797d2f71e76062617c4d65ad6bd1f7df6d37d29d73a05b05436b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2009-02-10T18:09:24Z",
    "title_canon_sha256": "3e52b3ae8a89a7a1e477cf6af4f9ccc0f1507c6a1344ab7bf8e6455d988980fe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0902.1714",
    "kind": "arxiv",
    "version": 1
  }
}