Pith Number

pith:BZYWMT4Y

pith:2011:BZYWMT4YHC2HHQNDVI5PMTUTVP

not attested not anchored not stored refs pending

Feedback in Luminous Obscured Quasars

Aaron J. Barth (UC Irvine), Jenny E. Greene (UT Austin), Luis C. Ho (Carnegie), Nadia L. Zakamska (KIPAC)

arxiv:1102.2913 v1 · 2011-02-14 · 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{BZYWMT4YHC2HHQNDVI5PMTUTVP}

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	2026-05-18T02:03:11.151817Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0e71664f9838b473c1a3aa3af64e93abc438a461bdced53241985999c370f468

Aliases

arxiv: 1102.2913 · arxiv_version: 1102.2913v1 · doi: 10.48550/arxiv.1102.2913 · pith_short_12: BZYWMT4YHC2H · pith_short_16: BZYWMT4YHC2HHQND · pith_short_8: BZYWMT4Y

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/BZYWMT4YHC2HHQNDVI5PMTUTVP \
  | 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: 0e71664f9838b473c1a3aa3af64e93abc438a461bdced53241985999c370f468

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2b132fb6b06244abdf627467108613228f1d24e9a05ab6f4caeb3af197137c42",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-02-14T22:05:15Z",
    "title_canon_sha256": "028921e3a0475ac277f1d1fc9d7451e7843eda1617eeace6776714e25df0a3ad"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.2913",
    "kind": "arxiv",
    "version": 1
  }
}