Pith Number

pith:IORCAHTS

pith:2018:IORCAHTSJKGCGZHQYT7BSO36PU

not attested not anchored not stored refs pending

Teaching cosmology with special relativity: Piecewise inertial frames as a model for cosmic expansion

Markus P\"ossel

arxiv:1811.09524 v1 · 2018-11-23 · gr-qc · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{IORCAHTSJKGCGZHQYT7BSO36PU}

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	2026-05-17T23:56:33.315364Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

43a2201e724a8c2364f0c4fe193b7e7d10d0794d4719cca69d55ce7ff56d4431

Aliases

arxiv: 1811.09524 · arxiv_version: 1811.09524v1 · doi: 10.48550/arxiv.1811.09524 · pith_short_12: IORCAHTSJKGC · pith_short_16: IORCAHTSJKGCGZHQ · pith_short_8: IORCAHTS

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/IORCAHTSJKGCGZHQYT7BSO36PU \
  | 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: 43a2201e724a8c2364f0c4fe193b7e7d10d0794d4719cca69d55ce7ff56d4431

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "31734b7ec8509d46f4f6e7a29c57e9d269181339aa210b4142a5680310ce94b2",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2018-11-23T15:46:44Z",
    "title_canon_sha256": "48c78a4d42373ce75f090a804e0cc2c1eb43dcfb7bc8352a849832bad408047c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.09524",
    "kind": "arxiv",
    "version": 1
  }
}