Pith Number

pith:HJZ2T5O4

pith:2007:HJZ2T5O4CZBIT23GSQ43PLBZRK

not attested not anchored not stored refs pending

de Sitter space and the equivalence between f(R) and scalar-tensor gravity

Valerio Faraoni (Bishop's University)

arxiv:gr-qc/0703044 v2 · 2007-03-06 · 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{HJZ2T5O4CZBIT23GSQ43PLBZRK}

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.

Cited by

2 papers in Pith

New interpretation of the Minkowski limit of $R^2$ gravity

ACT Data and Positive Running of the Spectral Index for Scalar Theory and Modified Gravity

Receipt and verification

First computed	2026-07-04T15:25:07.794413Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3a73a9f5dc164289eb669439b7ac398ab19960b6661aa63e8976cf5009d4e3c5

Aliases

arxiv: gr-qc/0703044 · arxiv_version: gr-qc/0703044v2 · doi: 10.48550/arxiv.gr-qc/0703044 · pith_short_12: HJZ2T5O4CZBI · pith_short_16: HJZ2T5O4CZBIT23G · pith_short_8: HJZ2T5O4

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/HJZ2T5O4CZBIT23GSQ43PLBZRK \
  | 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: 3a73a9f5dc164289eb669439b7ac398ab19960b6661aa63e8976cf5009d4e3c5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e83b849433b834d933615185045b818db3839f23f61aeab806ad9e98f9236961",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2007-03-06T23:23:21Z",
    "title_canon_sha256": "a35a6aa56053d3811f015da473dab4446ba17b6240518148794b3f6a8c992b02"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0703044",
    "kind": "arxiv",
    "version": 2
  }
}