Pith Number

pith:EVKE4MGS

pith:2000:EVKE4MGS5CZV3UDYCFWXR7WST5

not attested not anchored not stored refs pending

Covariant and locally Lorentz-invariant varying speed of light theories

Joao Magueijo (Imperial College)

arxiv:gr-qc/0007036 v1 · 2000-07-17 · gr-qc · astro-ph · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{EVKE4MGS5CZV3UDYCFWXR7WST5}

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

Alleviating the Hubble Tension via Cosmological Time Dilation in the meVSL Model

Receipt and verification

First computed	2026-07-04T16:19:40.376817Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

25544e30d2e8b35dd078116d78fed29f54f7c6466f3a870d4edb83fc8e4f837b

Aliases

arxiv: gr-qc/0007036 · arxiv_version: gr-qc/0007036v1 · doi: 10.48550/arxiv.gr-qc/0007036 · pith_short_12: EVKE4MGS5CZV · pith_short_16: EVKE4MGS5CZV3UDY · pith_short_8: EVKE4MGS

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/EVKE4MGS5CZV3UDYCFWXR7WST5 \
  | 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: 25544e30d2e8b35dd078116d78fed29f54f7c6466f3a870d4edb83fc8e4f837b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8f80dd66fc2cc2e3d1c5d863faacdcc78536e4430efde8b675deeb46ed5ae265",
    "cross_cats_sorted": [
      "astro-ph",
      "hep-th"
    ],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2000-07-17T15:31:14Z",
    "title_canon_sha256": "4ba928ea96f0721421c0e5d9d1691708a2d186b33a1e6754dd629355d5dfb8fe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0007036",
    "kind": "arxiv",
    "version": 1
  }
}