Pith Number

pith:4KJG7ZC5

pith:2018:4KJG7ZC5SQLKMCHDDGXSKG5YCY

not attested not anchored not stored refs pending

On the connection of spacetime separability and spherical photon orbits

George Pappas, Kostas Glampedakis

arxiv:1806.04091 v2 · 2018-06-11 · gr-qc

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4KJG7ZC5SQLKMCHDDGXSKG5YCY}

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

Confronting eikonal and post-Kerr methods with numerical evolution of scalar field perturbations in spacetimes beyond Kerr

Receipt and verification

First computed	2026-05-17T23:48:45.789840Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e2926fe45d9416a608e319af251bb816345e5b2ae563b409f9c8e2d88bbf9b20

Aliases

arxiv: 1806.04091 · arxiv_version: 1806.04091v2 · doi: 10.48550/arxiv.1806.04091 · pith_short_12: 4KJG7ZC5SQLK · pith_short_16: 4KJG7ZC5SQLKMCHD · pith_short_8: 4KJG7ZC5

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/4KJG7ZC5SQLKMCHDDGXSKG5YCY \
  | 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: e2926fe45d9416a608e319af251bb816345e5b2ae563b409f9c8e2d88bbf9b20

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ec3ec8687fabf3e70acef7f48858a9f18b22df377b38b9c3322aaefc98cf3d5d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2018-06-11T16:24:50Z",
    "title_canon_sha256": "0f03dc7f2a678825a34de4bcddffb21f73d855619478e291f0380014c0f0d50b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.04091",
    "kind": "arxiv",
    "version": 2
  }
}