Pith Number

pith:XV7I5XAY

pith:2020:XV7I5XAYWUNNIU7GPRTNGFCYO7

not attested not anchored not stored refs pending

Constraints on the time variation of the gravitational constant using gravitational-wave observations of binary neutron stars

Aditya Vijaykumar, Parameswaran Ajith, Shasvath J. Kapadia

arxiv:2003.12832 v2 · 2020-03-28 · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XV7I5XAYWUNNIU7GPRTNGFCYO7}

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	2026-07-05T02:32:31.964727Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bd7e8edc18b51ad453e67c66d3145877ffa651ac03c9c0008fc5bc9a4ea38b95

Aliases

arxiv: 2003.12832 · arxiv_version: 2003.12832v2 · doi: 10.48550/arxiv.2003.12832 · pith_short_12: XV7I5XAYWUNN · pith_short_16: XV7I5XAYWUNNIU7G · pith_short_8: XV7I5XAY

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/XV7I5XAYWUNNIU7GPRTNGFCYO7 \
  | 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: bd7e8edc18b51ad453e67c66d3145877ffa651ac03c9c0008fc5bc9a4ea38b95

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c3035e7a301b3b28d264ced97a639d4d264707a540217bff4e899e286ec006c9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2020-03-28T16:13:27Z",
    "title_canon_sha256": "b124e1f60defc5d54c41525f697f9fe4ed1e8932e9c9003d30ae5a54ebf98b71"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2003.12832",
    "kind": "arxiv",
    "version": 2
  }
}