Pith Number

pith:H2STOIXN

pith:2013:H2STOIXN6764KUIFZTDCDGSWDV

not attested not anchored not stored refs pending

Massive black hole factories: Supermassive and quasi-star formation in primordial halos

Andrea Ferrara, Daniele Galli, Dominik R.G. Schleicher, Francesco Palla, Muhammad Latif

arxiv:1305.5923 v1 · 2013-05-25 · 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{H2STOIXN6764KUIFZTDCDGSWDV}

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

A "Black Hole Star" Reveals the Remarkable Gas-Enshrouded Hearts of the Little Red Dots

Receipt and verification

First computed	2026-05-18T01:49:46.524137Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3ea53722edf7fdc55105ccc6219a561d75cf987d95b3e8a9ed74bc8aedf57bc7

Aliases

arxiv: 1305.5923 · arxiv_version: 1305.5923v1 · doi: 10.48550/arxiv.1305.5923 · pith_short_12: H2STOIXN6764 · pith_short_16: H2STOIXN6764KUIF · pith_short_8: H2STOIXN

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/H2STOIXN6764KUIFZTDCDGSWDV \
  | 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: 3ea53722edf7fdc55105ccc6219a561d75cf987d95b3e8a9ed74bc8aedf57bc7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "af307ea83008011256251a5678ccea4177f3f7b72d22b2612e7014e4b5b6b01d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-05-25T13:57:34Z",
    "title_canon_sha256": "d9c136eb4b76e4056db039a7563459a1adff7ace4fa20653b8c432dc01ed5db3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.5923",
    "kind": "arxiv",
    "version": 1
  }
}