Pith Number

pith:IRDUSCB5

pith:1999:IRDUSCB5CCSUTZD5WRBTPJWMP6

not attested not anchored not stored refs pending

Fock-Lorentz transformations and time-varying speed of light

S.N.Manida (Saint-Petersburg State University)

arxiv:gr-qc/9905046 v1 · 1999-05-14 · gr-qc · astro-ph · physics.ed-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IRDUSCB5CCSUTZD5WRBTPJWMP6}

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

Revisiting Varying Speed of Light in Cosmology: Insights from the Friedmann-Lema\^itre-Robertson-Walker Metric

Receipt and verification

First computed	2026-07-04T14:26:16.461441Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

444749083d10a549e47db44337a6cc7f9271dca94d8d79cdb5d0d5afc3a22e27

Aliases

arxiv: gr-qc/9905046 · arxiv_version: gr-qc/9905046v1 · doi: 10.48550/arxiv.gr-qc/9905046 · pith_short_12: IRDUSCB5CCSU · pith_short_16: IRDUSCB5CCSUTZD5 · pith_short_8: IRDUSCB5

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/IRDUSCB5CCSUTZD5WRBTPJWMP6 \
  | 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: 444749083d10a549e47db44337a6cc7f9271dca94d8d79cdb5d0d5afc3a22e27

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eaaadd8ea41ef016c10a8f954ffd620f94654dc8a2cfa290128c12b48244f15c",
    "cross_cats_sorted": [
      "astro-ph",
      "physics.ed-ph"
    ],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "1999-05-14T14:28:50Z",
    "title_canon_sha256": "8e632e868cfc32b4dd91ce2511cbc5ef38746f5cc03c00a839d2c259b6773550"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/9905046",
    "kind": "arxiv",
    "version": 1
  }
}