Pith Number

pith:Z56GIDD6

pith:2013:Z56GIDD67I2WWNNK7PR3NLT4DJ

not attested not anchored not stored refs pending

New limits on the violation of local position invariance of gravity

Lijing Shao, Norbert Wex

arxiv:1307.2637 v1 · 2013-07-10 · gr-qc · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Z56GIDD67I2WWNNK7PR3NLT4DJ}

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	2026-05-18T03:16:59.939186Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cf7c640c7efa356b35aafbe3b6ae7c1a66f1c8fe03adbbb7a209382e39f2f598

Aliases

arxiv: 1307.2637 · arxiv_version: 1307.2637v1 · doi: 10.48550/arxiv.1307.2637 · pith_short_12: Z56GIDD67I2W · pith_short_16: Z56GIDD67I2WWNNK · pith_short_8: Z56GIDD6

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/Z56GIDD67I2WWNNK7PR3NLT4DJ \
  | 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: cf7c640c7efa356b35aafbe3b6ae7c1a66f1c8fe03adbbb7a209382e39f2f598

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5ebfe1528b8dfee02119818355b7de24d43f20ab9888fcd1458dd17387547bb3",
    "cross_cats_sorted": [
      "astro-ph.SR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-07-10T00:36:39Z",
    "title_canon_sha256": "29f8e1b0561db276a68bb2a8494d21d3c58207637e23fe3a8a597ab485426a1a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.2637",
    "kind": "arxiv",
    "version": 1
  }
}