Pith Number

pith:6OQB7YQP

pith:2009:6OQB7YQPZGDQMFUOTKMIDXWJ5L

not attested not anchored not stored refs pending

Further Extended Theories of Gravitation: Part II

L. Fatibene, M. Ferraris, M. Francaviglia, S. Mercadante

arxiv:0911.2842 v2 · 2009-11-15 · 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{6OQB7YQPZGDQMFUOTKMIDXWJ5L}

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	2026-05-18T04:32:09.641832Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f3a01fe20fc98706168e9a9881dec9eaeb801574127f5f30d25c04f8dcdf3343

Aliases

arxiv: 0911.2842 · arxiv_version: 0911.2842v2 · doi: 10.48550/arxiv.0911.2842 · pith_short_12: 6OQB7YQPZGDQ · pith_short_16: 6OQB7YQPZGDQMFUO · pith_short_8: 6OQB7YQP

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/6OQB7YQPZGDQMFUOTKMIDXWJ5L \
  | 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: f3a01fe20fc98706168e9a9881dec9eaeb801574127f5f30d25c04f8dcdf3343

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7bb53a90bc6a72cc00cf953feebf89b0384e8e1bee1fafbf0bd6d446c78dec1e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2009-11-15T09:05:58Z",
    "title_canon_sha256": "1fadf08f05b8df0b2aec89c7c2ed4c84adbf654931bd159ef736baf8ec6c9d74"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0911.2842",
    "kind": "arxiv",
    "version": 2
  }
}