Pith Number

pith:CLT4T3YW

pith:2019:CLT4T3YWQCLN7ZTJJ5TUYXV6AF

not attested not anchored not stored refs pending

Twin LIGO/Virgo Detections of a Viable Gravitationally-Lensed Black Hole Merger

George F. Smoot III, Jose M. Diego, Tom Broadhurst

arxiv:1901.03190 v1 · 2019-01-10 · 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{CLT4T3YWQCLN7ZTJJ5TUYXV6AF}

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

1 paper in Pith

Open data from the first and second observing runs of Advanced LIGO and Advanced Virgo

Receipt and verification

First computed	2026-05-17T23:56:35.281753Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

12e7c9ef168096dfe6694f674c5ebe014a8db2b9da27659d99eaec7a9e40a084

Aliases

arxiv: 1901.03190 · arxiv_version: 1901.03190v1 · doi: 10.48550/arxiv.1901.03190 · pith_short_12: CLT4T3YWQCLN · pith_short_16: CLT4T3YWQCLN7ZTJ · pith_short_8: CLT4T3YW

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/CLT4T3YWQCLN7ZTJJ5TUYXV6AF \
  | 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: 12e7c9ef168096dfe6694f674c5ebe014a8db2b9da27659d99eaec7a9e40a084

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5590dcf18e20f9ad3f729475433ca9a94f9e3a26fbc6f07515a55da0b1ee2a14",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2019-01-10T14:27:46Z",
    "title_canon_sha256": "bb87f12c38c71871af763bc296a21b41160c57ab4d4a1e28bd03ebfb2deccb55"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1901.03190",
    "kind": "arxiv",
    "version": 1
  }
}