Pith Number

pith:R7ETJHWR

pith:2014:R7ETJHWRAMZ2FLFQ7FZ4XUCE4I

not attested not anchored not stored refs pending

Feedback-regulated Super Massive Black Hole Seed Formation

Andrea Ferrara (SNS Pisa), Andrei Mesinger (SNS Pisa), Mark Dijkstra (ITA Oslo)

arxiv:1405.6743 v1 · 2014-05-26 · 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{R7ETJHWRAMZ2FLFQ7FZ4XUCE4I}

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

Direct Collapse Black Hole Candidates from Decaying Dark Matter

Receipt and verification

First computed	2026-05-18T01:43:06.087681Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8fc9349ed10333a2acb0f973cbd044e23f0f9ba5b6ce4e0850f59f767f77e417

Aliases

arxiv: 1405.6743 · arxiv_version: 1405.6743v1 · doi: 10.48550/arxiv.1405.6743 · pith_short_12: R7ETJHWRAMZ2 · pith_short_16: R7ETJHWRAMZ2FLFQ · pith_short_8: R7ETJHWR

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/R7ETJHWRAMZ2FLFQ7FZ4XUCE4I \
  | 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: 8fc9349ed10333a2acb0f973cbd044e23f0f9ba5b6ce4e0850f59f767f77e417

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5530273dd44897c0a8559663b8091e845e1d119fb533a6e2b50c3bf60cbc493a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2014-05-26T20:22:23Z",
    "title_canon_sha256": "4312e0633af3fbd2a78741b318d1cb2993df8578dd62f9d7c9839eb34a171f74"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1405.6743",
    "kind": "arxiv",
    "version": 1
  }
}