Pith Number

pith:6YU5WIBM

pith:2015:6YU5WIBM75VTH6XXEWRKJSN63C

not attested not anchored not stored refs pending

A Machian Version of Einstein's Variable Speed of Light Theory

Alexander Unzicker, Jan Preuss

arxiv:1503.06763 v2 · 2015-03-13 · physics.gen-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{6YU5WIBM75VTH6XXEWRKJSN63C}

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	2026-05-18T02:20:02.511456Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f629db202cff6b33faf725a2a4c9bed8b1bc9d9acb93687d94b2046269aedf9e

Aliases

arxiv: 1503.06763 · arxiv_version: 1503.06763v2 · doi: 10.48550/arxiv.1503.06763 · pith_short_12: 6YU5WIBM75VT · pith_short_16: 6YU5WIBM75VTH6XX · pith_short_8: 6YU5WIBM

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/6YU5WIBM75VTH6XXEWRKJSN63C \
  | 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: f629db202cff6b33faf725a2a4c9bed8b1bc9d9acb93687d94b2046269aedf9e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0602bc2dc73b9eea0b62c5feacb0fd2ee3c277ff74d0a335e36865126ea49465",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.gen-ph",
    "submitted_at": "2015-03-13T19:05:51Z",
    "title_canon_sha256": "c3f15586ee916af51c47ad6e6e379e5f0caf462cc49f3f48173ec5234067e6ea"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.06763",
    "kind": "arxiv",
    "version": 2
  }
}