Pith Number

pith:B2M63LW2

pith:2011:B2M63LW2L5LXQQ55XVNWXRBWV5

not attested not anchored not stored refs pending

Quasars with Anomalous H\beta\ Profiles I: Demographics

Charles L. Steinhardt, John D. Silverman

arxiv:1109.0537 v3 · 2011-09-02 · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{B2M63LW2L5LXQQ55XVNWXRBWV5}

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	2026-05-18T00:48:21.300606Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0e99edaeda5f577843bdbd5b6bc436af50a93d22897b5367f3532483f823e171

Aliases

arxiv: 1109.0537 · arxiv_version: 1109.0537v3 · doi: 10.48550/arxiv.1109.0537 · pith_short_12: B2M63LW2L5LX · pith_short_16: B2M63LW2L5LXQQ55 · pith_short_8: B2M63LW2

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/B2M63LW2L5LXQQ55XVNWXRBWV5 \
  | 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: 0e99edaeda5f577843bdbd5b6bc436af50a93d22897b5367f3532483f823e171

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0b70d10a97c953b2a38c3bc6255fb40cd8f752125f869d2e0fafc4778570844e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2011-09-02T20:00:02Z",
    "title_canon_sha256": "1a68af68e75be4ed0a76ce7ab0d23d1ce6eb49ef87dc9da1cfc6af2331dc37ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.0537",
    "kind": "arxiv",
    "version": 3
  }
}