Pith Number

pith:FD7GEKT5

pith:2013:FD7GEKT5YFENQWPXQXZQPCZGMV

not attested not anchored not stored refs pending

Black hole binary remnant mass and spin: A new phenomenological formula

Carlos O. Lousto, Yosef Zlochower

arxiv:1312.5775 v3 · 2013-12-19 · gr-qc · astro-ph.CO · astro-ph.GA · astro-ph.HE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FD7GEKT5YFENQWPXQXZQPCZGMV}

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

2 papers in Pith

Cusp Formation in Merging Black Hole Horizons

Receipt and verification

First computed	2026-05-18T02:49:45.728929Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

28fe622a7dc148d859f785f3078b266553165fd5ea572017e2b68ccdcece32d2

Aliases

arxiv: 1312.5775 · arxiv_version: 1312.5775v3 · doi: 10.48550/arxiv.1312.5775 · pith_short_12: FD7GEKT5YFEN · pith_short_16: FD7GEKT5YFENQWPX · pith_short_8: FD7GEKT5

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/FD7GEKT5YFENQWPXQXZQPCZGMV \
  | 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: 28fe622a7dc148d859f785f3078b266553165fd5ea572017e2b68ccdcece32d2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "aa0ea20e10af722d16e2e328a3d60c5daccb6115ce76b95bffd915497c6fd835",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "astro-ph.GA",
      "astro-ph.HE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-12-19T23:06:48Z",
    "title_canon_sha256": "7f902a37ba4bb8bc45328761c8592b7309206b97dfd837519b78cbd557903ab8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.5775",
    "kind": "arxiv",
    "version": 3
  }
}