Pith Number

pith:J4DBA6OS

pith:2018:J4DBA6OSPWU43KIK3FTPAHMIVD

not attested not anchored not stored refs pending

The 1916 PhD Thesis of Johannes Droste and the Discovery of Gravitational Repulsion

B. Wieb VanDerMeer, Charles H. McGruder III

arxiv:1801.07592 v1 · 2018-01-21 · physics.hist-ph · 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{J4DBA6OSPWU43KIK3FTPAHMIVD}

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	2026-05-18T00:25:12.478540Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4f061079d27da9cda90ad966f01d88a8c1aefbe2a6f280bc7496f00bdf0dcf96

Aliases

arxiv: 1801.07592 · arxiv_version: 1801.07592v1 · doi: 10.48550/arxiv.1801.07592 · pith_short_12: J4DBA6OSPWU4 · pith_short_16: J4DBA6OSPWU43KIK · pith_short_8: J4DBA6OS

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/J4DBA6OSPWU43KIK3FTPAHMIVD \
  | 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: 4f061079d27da9cda90ad966f01d88a8c1aefbe2a6f280bc7496f00bdf0dcf96

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ffe468d15d9bef983431210fa1e92822f86de0998a439a4a385ac05364897254",
    "cross_cats_sorted": [
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.hist-ph",
    "submitted_at": "2018-01-21T20:53:01Z",
    "title_canon_sha256": "40bf402c89857bc84e0829893b91b1deefc764c1dd15eb7f19fd7ae686bba765"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.07592",
    "kind": "arxiv",
    "version": 1
  }
}