Pith Number

pith:7QPJWJH4

pith:2012:7QPJWJH42PYGLQPJHNP7ZMFADA

not attested not anchored not stored refs pending

The Growth of the Stellar Seeds of Supermassive Black Holes

Bhaskar Agarwal, Christopher L. Fryer, Claudio Dalla Vecchia, Daniel J. Whalen, Hui Li, Jarrett L. Johnson, Mario Livio, Sadegh Khochfar

arxiv:1206.5825 v1 · 2012-06-25 · 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{7QPJWJH42PYGLQPJHNP7ZMFADA}

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	2026-05-18T01:56:41.920530Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc1e9b24fcd3f065c1e93b5ffcb0a01804499d5531f95623fd5ea2361acfdcb2

Aliases

arxiv: 1206.5825 · arxiv_version: 1206.5825v1 · doi: 10.48550/arxiv.1206.5825 · pith_short_12: 7QPJWJH42PYG · pith_short_16: 7QPJWJH42PYGLQPJ · pith_short_8: 7QPJWJH4

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/7QPJWJH42PYGLQPJHNP7ZMFADA \
  | 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: fc1e9b24fcd3f065c1e93b5ffcb0a01804499d5531f95623fd5ea2361acfdcb2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "de90c2ff4f287db69c59ed886868a54b3c8a22366e9f3e352cbb675b89415ccb",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2012-06-25T20:14:04Z",
    "title_canon_sha256": "f10f655e46f618ccca4e278cd8f86affdb74f6d14bdb05946804e98d244ddca1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.5825",
    "kind": "arxiv",
    "version": 1
  }
}