Pith Number

pith:2GGRALUF

pith:2012:2GGRALUFMXQ2EGOJ4LPWSTTNAJ

not attested not anchored not stored refs pending

Simultaneous Ultraviolet and Optical Emission-line Profiles of Quasars: Implications for Black Hole Mass Determination

Gabriele Ponti, Jenny E. Greene, Luis C. Ho, Paolo Goldoni, Xiao-Bo Dong

arxiv:1205.3224 v1 · 2012-05-15 · 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{2GGRALUFMXQ2EGOJ4LPWSTTNAJ}

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	2026-05-18T01:57:32.207297Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d18d102e8565e1a219c9e2df694e6d026056a042f3353382e1bc410794cd222d

Aliases

arxiv: 1205.3224 · arxiv_version: 1205.3224v1 · doi: 10.48550/arxiv.1205.3224 · pith_short_12: 2GGRALUFMXQ2 · pith_short_16: 2GGRALUFMXQ2EGOJ · pith_short_8: 2GGRALUF

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/2GGRALUFMXQ2EGOJ4LPWSTTNAJ \
  | 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: d18d102e8565e1a219c9e2df694e6d026056a042f3353382e1bc410794cd222d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e109a1b14df2f52e9171a2fe0a96474abef952deef3600fe85b8bd748eb7d3cd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-05-15T00:18:09Z",
    "title_canon_sha256": "bb19234973d09540156802ce751cf66d0558394b862b077fde4d18a6d66004e1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1205.3224",
    "kind": "arxiv",
    "version": 1
  }
}