Pith Number

pith:LBAX2LDA

pith:2011:LBAX2LDAM5H7V44SVNK6AGSQNZ

not attested not anchored not stored refs pending

Supermassive Black Holes: Connecting the Growth to the Cosmic Star Formation Rate

Eduardo S. Pereira, Oswaldo D. Miranda

arxiv:1108.3745 v2 · 2011-08-18 · 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{LBAX2LDAM5H7V44SVNK6AGSQNZ}

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	2026-05-18T02:00:50.901437Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

58417d2c60674ffaf392ab55e01a506e59ee08e9cfaab42346ee1cc927643d44

Aliases

arxiv: 1108.3745 · arxiv_version: 1108.3745v2 · doi: 10.48550/arxiv.1108.3745 · pith_short_12: LBAX2LDAM5H7 · pith_short_16: LBAX2LDAM5H7V44S · pith_short_8: LBAX2LDA

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/LBAX2LDAM5H7V44SVNK6AGSQNZ \
  | 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: 58417d2c60674ffaf392ab55e01a506e59ee08e9cfaab42346ee1cc927643d44

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dc3f6d55ec2e5713f52c1c07b4b6272b979887c2d72eb39e00eea7e5985eadc0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2011-08-18T13:02:11Z",
    "title_canon_sha256": "56eb99aa7dea0d3ceedce2136b87c85e2be543689a59fdd5f7b0d0feadbe3646"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1108.3745",
    "kind": "arxiv",
    "version": 2
  }
}