Pith Number

pith:SJQPTVA5

pith:2014:SJQPTVA534IDITZECTCGZJDQTI

not attested not anchored not stored refs pending

Estimating Black Hole Masses in Hundreds of Quasars

Eric Morganson, Hans-Walter Rix, Jo Bovy, Nina Hernitschek

arxiv:1412.6531 v1 · 2014-12-19 · 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{SJQPTVA534IDITZECTCGZJDQTI}

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	2026-05-18T01:41:16.378276Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9260f9d41ddf10344f2414c46ca4709a2170f24042c3109eb0566ddfebca84ff

Aliases

arxiv: 1412.6531 · arxiv_version: 1412.6531v1 · doi: 10.48550/arxiv.1412.6531 · pith_short_12: SJQPTVA534ID · pith_short_16: SJQPTVA534IDITZE · pith_short_8: SJQPTVA5

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/SJQPTVA534IDITZECTCGZJDQTI \
  | 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: 9260f9d41ddf10344f2414c46ca4709a2170f24042c3109eb0566ddfebca84ff

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1eefa27642425e710570d2d4164affe8de69189b10ced5e9a26a7354b2b7cb67",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2014-12-19T21:00:12Z",
    "title_canon_sha256": "504822f2400ffc4ffba9be362f02ddbdcba87a708f770d0e10796e115ccce013"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1412.6531",
    "kind": "arxiv",
    "version": 1
  }
}