Pith Number

pith:B52EABHC

pith:2014:B52EABHC7F7DQRXM5GDNVSXOA3

not attested not anchored not stored refs pending

Infrared spectra and photometry of complete samples of PG and 2MASS quasars

George Rieke (Arizona), Kate Su (Arizona), Patrick Ogle (Caltech), Yong Shi (NJU), Zoltan Balog (MPIA)

arxiv:1408.5909 v1 · 2014-08-25 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{B52EABHC7F7DQRXM5GDNVSXOA3}

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	2026-05-18T02:40:38.160243Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0f744004e2f97e3846ece986dacaee06e4e764551ae154d0823ebe9786831b2c

Aliases

arxiv: 1408.5909 · arxiv_version: 1408.5909v1 · doi: 10.48550/arxiv.1408.5909 · pith_short_12: B52EABHC7F7D · pith_short_16: B52EABHC7F7DQRXM · pith_short_8: B52EABHC

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/B52EABHC7F7DQRXM5GDNVSXOA3 \
  | 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: 0f744004e2f97e3846ece986dacaee06e4e764551ae154d0823ebe9786831b2c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "91e491ef9b1a4e51751774250223a7959f546367672c2223a7e4cc00c8fb3237",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2014-08-25T20:03:08Z",
    "title_canon_sha256": "16af7b4de279c698f76d25977611bfa6a1b6dccafe93ad65d4a73815c005b48e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.5909",
    "kind": "arxiv",
    "version": 1
  }
}