Pith Number

pith:QSZWHWXL

pith:2012:QSZWHWXLVEJY24WSKN6T2AX6C7

not attested not anchored not stored refs pending

The orientation dependence of quasar single-epoch black hole mass scaling relationships

Beverley Wills, Jessie C. Runnoe, Michael Brotherton, Michael DiPompeo, Zhaohui Shang

arxiv:1211.3984 v1 · 2012-11-16 · 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{QSZWHWXLVEJY24WSKN6T2AX6C7}

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	2026-05-18T01:53:10.254841Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

84b363daeba9138d72d2537d3d02fe17e0a9c757f8dae4f3b6909a7eb775d4d6

Aliases

arxiv: 1211.3984 · arxiv_version: 1211.3984v1 · doi: 10.48550/arxiv.1211.3984 · pith_short_12: QSZWHWXLVEJY · pith_short_16: QSZWHWXLVEJY24WS · pith_short_8: QSZWHWXL

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/QSZWHWXLVEJY24WSKN6T2AX6C7 \
  | 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: 84b363daeba9138d72d2537d3d02fe17e0a9c757f8dae4f3b6909a7eb775d4d6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "998fc3f7b1852a5c4ce2fb48e512df55066a6ed829e4552f0eff1bba3d3dc85d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-11-16T18:24:56Z",
    "title_canon_sha256": "3f58a38f08e544855b2564d4b9dc7755172284c7f69209b28e351104e3f0ad4e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.3984",
    "kind": "arxiv",
    "version": 1
  }
}