Pith Number

pith:K4VQTPQS

pith:2014:K4VQTPQSZGXRJX3F547ECLMZRT

not attested not anchored not stored refs pending

Radar orthogonality and radar length in Finsler and metric spacetime geometry

Christian Pfeifer

arxiv:1408.5306 v3 · 2014-08-22 · gr-qc · math-ph · math.DG · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{K4VQTPQSZGXRJX3F547ECLMZRT}

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	2026-05-18T02:40:55.416038Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

572b09be12c9af14df65ef3e412d998ce44485119ff9e3ff3d6abdbf464c36b0

Aliases

arxiv: 1408.5306 · arxiv_version: 1408.5306v3 · doi: 10.48550/arxiv.1408.5306 · pith_short_12: K4VQTPQSZGXR · pith_short_16: K4VQTPQSZGXRJX3F · pith_short_8: K4VQTPQS

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/K4VQTPQSZGXRJX3F547ECLMZRT \
  | 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: 572b09be12c9af14df65ef3e412d998ce44485119ff9e3ff3d6abdbf464c36b0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "37603d6c8fe2e04e4358714589302144cf505f4172cb83537e11667136185708",
    "cross_cats_sorted": [
      "math-ph",
      "math.DG",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2014-08-22T14:42:15Z",
    "title_canon_sha256": "f9dc559a893e20caface7a7b3f1df9366cec6d42b2866cf4fa70e9f62beeaf61"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1408.5306",
    "kind": "arxiv",
    "version": 3
  }
}