Pith Number

pith:JJNZI2LK

pith:2017:JJNZI2LK5Z5OIJVH6DEBUZWPTJ

not attested not anchored not stored refs pending

The first supermassive black holes

Aaron Smith, Abraham Loeb, Volker Bromm

arxiv:1703.03083 v2 · 2017-03-09 · 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{JJNZI2LK5Z5OIJVH6DEBUZWPTJ}

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.

Cited by

1 paper in Pith

Hidden-sector accretion and warped black-string seeds for high-redshift supermassive black holes

Receipt and verification

First computed	2026-05-18T00:41:20.631376Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4a5b94696aee7ae426a7f0c81a66cf9a72f244012dbfb4a5d37cf4837184bd42

Aliases

arxiv: 1703.03083 · arxiv_version: 1703.03083v2 · doi: 10.48550/arxiv.1703.03083 · pith_short_12: JJNZI2LK5Z5O · pith_short_16: JJNZI2LK5Z5OIJVH · pith_short_8: JJNZI2LK

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/JJNZI2LK5Z5OIJVH6DEBUZWPTJ \
  | 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: 4a5b94696aee7ae426a7f0c81a66cf9a72f244012dbfb4a5d37cf4837184bd42

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c70355c110e0a4f8204482336347b4e1224264ba658212a6312bc43514787a57",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-03-09T00:20:24Z",
    "title_canon_sha256": "a92843ce3fe701bc4aa2b10da465fba0f81a3471936820e4e2f332ee748fe9ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.03083",
    "kind": "arxiv",
    "version": 2
  }
}