Pith Number

pith:JWJZKYPV

pith:2010:JWJZKYPV6ZJT2EVXIR3CIRBB7I

not attested not anchored not stored refs pending

Accretion onto black holes formed by direct collapse

Fabrice Durier, Jarrett L. Johnson, Sadegh Khochfar, Thomas H. Greif

arxiv:1007.3849 v2 · 2010-07-22 · 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{JWJZKYPV6ZJT2EVXIR3CIRBB7I}

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	2026-05-18T02:06:11.628493Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4d939561f5f6533d12b74476244421fa2b32ca510f2bae4dc893e1b02038a81f

Aliases

arxiv: 1007.3849 · arxiv_version: 1007.3849v2 · doi: 10.48550/arxiv.1007.3849 · pith_short_12: JWJZKYPV6ZJT · pith_short_16: JWJZKYPV6ZJT2EVX · pith_short_8: JWJZKYPV

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/JWJZKYPV6ZJT2EVXIR3CIRBB7I \
  | 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: 4d939561f5f6533d12b74476244421fa2b32ca510f2bae4dc893e1b02038a81f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7731117b47899142cb5cf1e3185944cb865113baddfa69ec465be423f326f0b1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2010-07-22T10:35:08Z",
    "title_canon_sha256": "2a345e7d7aa76be8ca4ef900a5a52e9b872c13a0afa175d71c24278e63d8a2b4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1007.3849",
    "kind": "arxiv",
    "version": 2
  }
}