Pith Number

pith:IL6TPYGP

pith:2019:IL6TPYGPS6QYGM53B3ULIO75CE

not attested not anchored not stored refs pending

Variations of Infinite Derivative Modified Gravity

Branko Dragovich, Ivan Dimitrijevic, Jelena Stankovic, Zoran Rakic

arxiv:1902.08820 v1 · 2019-02-23 · hep-th · astro-ph.CO · 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{IL6TPYGPS6QYGM53B3ULIO75CE}

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	2026-05-17T23:52:49.813444Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

42fd37e0cf97a18333bb0ee8b43bfd1107d4cc10c2d58d4aeec215a6a4a120e0

Aliases

arxiv: 1902.08820 · arxiv_version: 1902.08820v1 · doi: 10.48550/arxiv.1902.08820 · pith_short_12: IL6TPYGPS6QY · pith_short_16: IL6TPYGPS6QYGM53 · pith_short_8: IL6TPYGP

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/IL6TPYGPS6QYGM53B3ULIO75CE \
  | 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: 42fd37e0cf97a18333bb0ee8b43bfd1107d4cc10c2d58d4aeec215a6a4a120e0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "44e18fdacaadb4bfc8552ae5b14fb0ab63435873e80cf3a34d41f827bcc18ea6",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2019-02-23T17:48:19Z",
    "title_canon_sha256": "377a60442aa6beba593fd6b6576a631e461f64635d3fad816d2001f7ab89f953"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.08820",
    "kind": "arxiv",
    "version": 1
  }
}