Pith Number

pith:TU2IQCDC

pith:2025:TU2IQCDCG7AZAIAPY5PSD53UIB

not attested not anchored not stored refs pending

Is spacetime curved? Assessing the underdetermination of general relativity and teleparallel gravity

James Read, Ruward Mulder

arxiv:2505.04632 v1 · 2025-04-24 · physics.hist-ph · gr-qc · math-ph · 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{TU2IQCDCG7AZAIAPY5PSD53UIB}

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	2026-07-05T11:00:10.519363Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9d3488086237c190200fc75f21f77440489fa65ddc672cb1650bd6db05c4a6a4

Aliases

arxiv: 2505.04632 · arxiv_version: 2505.04632v1 · doi: 10.48550/arxiv.2505.04632 · pith_short_12: TU2IQCDCG7AZ · pith_short_16: TU2IQCDCG7AZAIAP · pith_short_8: TU2IQCDC

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/TU2IQCDCG7AZAIAPY5PSD53UIB \
  | 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: 9d3488086237c190200fc75f21f77440489fa65ddc672cb1650bd6db05c4a6a4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "73d15f207367f4eb635b36134b8bce72546b359f3b28c7e325b235cb9658c085",
    "cross_cats_sorted": [
      "gr-qc",
      "math-ph",
      "math.MP"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "physics.hist-ph",
    "submitted_at": "2025-04-24T16:23:44Z",
    "title_canon_sha256": "81a48a2510daf9b7a56bd5de9e3755d96285d12f3b49ddda5b1166b5d40e8302"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.04632",
    "kind": "arxiv",
    "version": 1
  }
}