Pith Number

pith:4ZF3K7S6

pith:2020:4ZF3K7S63OH3Q4DIGW7W7UIRJJ

not attested not anchored not stored refs pending

Cosmology with relativistically varying physical constants

Rajendra P. Gupta

arxiv:2009.08878 v1 · 2020-09-17 · astro-ph.CO · 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{4ZF3K7S63OH3Q4DIGW7W7UIRJJ}

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

New analysis of SNeIa Pantheon Catalog: Variable speed of light as an alternative to dark energy

Receipt and verification

First computed	2026-07-05T01:36:23.371425Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e64bb57e5edb8fb8706835bf6fd1114a646048b9be1e15921526100e13dd52cc

Aliases

arxiv: 2009.08878 · arxiv_version: 2009.08878v1 · doi: 10.48550/arxiv.2009.08878 · pith_short_12: 4ZF3K7S63OH3 · pith_short_16: 4ZF3K7S63OH3Q4DI · pith_short_8: 4ZF3K7S6

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/4ZF3K7S63OH3Q4DIGW7W7UIRJJ \
  | 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: e64bb57e5edb8fb8706835bf6fd1114a646048b9be1e15921526100e13dd52cc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "88cd07c41a289f4b04ea7fc32f6cfa3ab253d27cdf19ba5d325f9116c7dc0fc4",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2020-09-17T16:23:52Z",
    "title_canon_sha256": "d4c2f7ab3e97295de453b635d3013ba0949b8a1e58af109e372b51cb231bee48"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2009.08878",
    "kind": "arxiv",
    "version": 1
  }
}