Pith Number

pith:G7B54TPY

pith:2022:G7B54TPY5GOK6NVL47AW7OJS3S

not attested not anchored not stored refs pending

A General Relativistic Pendulum: Isochronous vs. Geodesic Motion

Miguel A. Martin-Delgado

arxiv:2205.02509 v1 · 2022-05-05 · 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{G7B54TPY5GOK6NVL47AW7OJS3S}

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

A Simple Pendulum in Schwarzschild Spacetime

Receipt and verification

First computed	2026-07-05T04:20:38.076810Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

37c3de4df8e99caf36abe7c16fb932dcb7aad600099bfd3627967e2434fed0e4

Aliases

arxiv: 2205.02509 · arxiv_version: 2205.02509v1 · doi: 10.48550/arxiv.2205.02509 · pith_short_12: G7B54TPY5GOK · pith_short_16: G7B54TPY5GOK6NVL · pith_short_8: G7B54TPY

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/G7B54TPY5GOK6NVL47AW7OJS3S \
  | 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: 37c3de4df8e99caf36abe7c16fb932dcb7aad600099bfd3627967e2434fed0e4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b3c98e3ea02b5827805579b8b3646c6276ae54fd712c57032b76ce78ba5aaa19",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2022-05-05T08:38:19Z",
    "title_canon_sha256": "8109da94fe1d8929f71896c5913ee14ffa43f74e799055edff99ec3afbcb611f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2205.02509",
    "kind": "arxiv",
    "version": 1
  }
}