Pith Number

pith:622PVYVC

pith:2005:622PVYVCS6IOKVTVGQZFYVYFMX

not attested not anchored not stored refs pending

Bounds on Expected Black Hole Spins in Inspiraling Binaries

2) ((1) Northwestern University, (2) New Mexico State University), J. Kaplan (1), K. Belczynski (1, R. O'Shaughnessy (1), V. Kalogera (1)

arxiv:astro-ph/0503219 v4 · 2005-03-09 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{622PVYVCS6IOKVTVGQZFYVYFMX}

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	2026-05-18T01:07:31.624464Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f6b4fae2a29790e5567534325c570565ccdadf5d67dc0e7b4759b66f3b3ebc15

Aliases

arxiv: astro-ph/0503219 · arxiv_version: astro-ph/0503219v4 · doi: 10.48550/arxiv.astro-ph/0503219 · pith_short_12: 622PVYVCS6IO · pith_short_16: 622PVYVCS6IOKVTV · pith_short_8: 622PVYVC

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/622PVYVCS6IOKVTVGQZFYVYFMX \
  | 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: f6b4fae2a29790e5567534325c570565ccdadf5d67dc0e7b4759b66f3b3ebc15

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "811ddbf60c1b69a23398a0d38d8efb399cc387bedb9f1b126dc452adf6a6440a",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-03-09T15:19:22Z",
    "title_canon_sha256": "00f6ed45a754e3fadf2655a4d8689c048aeaea2f90f783843ee35aacf3df65c8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0503219",
    "kind": "arxiv",
    "version": 4
  }
}