Pith Number

pith:ZUYD7VUW

pith:2016:ZUYD7VUWCQIPKRY7ITUHNVSDO2

not attested not anchored not stored refs pending

Effects of binary stellar populations on direct collapse black hole formation

Bhaskar Agarwal, Fergus Cullen, Jarrett Johnson, Ralf Klessen, Sadegh Khochfar, Simon Glover

arxiv:1609.08605 v2 · 2016-09-27 · 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{ZUYD7VUWCQIPKRY7ITUHNVSDO2}

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	2026-05-18T00:45:54.199579Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cd303fd6961410f5471f44e876d64376b4c8775bd9289ef5c496fb9c001575ed

Aliases

arxiv: 1609.08605 · arxiv_version: 1609.08605v2 · doi: 10.48550/arxiv.1609.08605 · pith_short_12: ZUYD7VUWCQIP · pith_short_16: ZUYD7VUWCQIPKRY7 · pith_short_8: ZUYD7VUW

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/ZUYD7VUWCQIPKRY7ITUHNVSDO2 \
  | 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: cd303fd6961410f5471f44e876d64376b4c8775bd9289ef5c496fb9c001575ed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5184e49280005c813877b7682b994d0cca37b45f75016a31d69da5a29ac73946",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2016-09-27T19:59:59Z",
    "title_canon_sha256": "c326486237ec3196e56779c9abf6dd6577d81ca0a5e3af27e55abe0f5cdea24e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1609.08605",
    "kind": "arxiv",
    "version": 2
  }
}