Pith Number

pith:SVBAFV2Y

pith:2017:SVBAFV2YA4F7FSXR43NXXQVH3P

not attested not anchored not stored refs pending

Counting Black Holes: The Cosmic Stellar Remnant Population and Implications for LIGO

James S. Bullock, Manoj Kaplinghat, Oliver D. Elbert

arxiv:1703.02551 v2 · 2017-03-07 · astro-ph.GA · astro-ph.HE · astro-ph.SR

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SVBAFV2YA4F7FSXR43NXXQVH3P}

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	2026-05-18T00:31:13.226148Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

954202d758070bf2caf1e6db7bc2a7dbc164f8f0c679cf22a4c26cc7fcf22105

Aliases

arxiv: 1703.02551 · arxiv_version: 1703.02551v2 · doi: 10.48550/arxiv.1703.02551 · pith_short_12: SVBAFV2YA4F7 · pith_short_16: SVBAFV2YA4F7FSXR · pith_short_8: SVBAFV2Y

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/SVBAFV2YA4F7FSXR43NXXQVH3P \
  | 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: 954202d758070bf2caf1e6db7bc2a7dbc164f8f0c679cf22a4c26cc7fcf22105

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f336ab124c06946bd4fd30b4631b6544d46595d509bbb671816bc15eaa51123e",
    "cross_cats_sorted": [
      "astro-ph.HE",
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2017-03-07T19:00:07Z",
    "title_canon_sha256": "04e2a8afca78033fca72c3b6afb80ed69e09047baf061bb18d962b24a835e2ed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.02551",
    "kind": "arxiv",
    "version": 2
  }
}