Pith Number

pith:BRGAF44S

pith:2016:BRGAF44SWIEKVRRM6DS2FZQSB5

not attested not anchored not stored refs pending

Higher derivative gravity: field equation as the equation of state

Arif Mohd, Ramit Dey, Stefano Liberati

arxiv:1605.04789 v1 · 2016-05-16 · 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{BRGAF44SWIEKVRRM6DS2FZQSB5}

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

Semi-classical spacetime thermodynamics

Jacobson's thermodynamic approach to classical gravity applied to non-Riemannian geometries: remarks on the simplicity of Nature

Receipt and verification

First computed	2026-05-18T01:08:41.312662Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0c4c02f392b208aac62cf0e5a2e6120f7b0d31f1aed2dcc291df651fc4604e67

Aliases

arxiv: 1605.04789 · arxiv_version: 1605.04789v1 · doi: 10.48550/arxiv.1605.04789 · pith_short_12: BRGAF44SWIEK · pith_short_16: BRGAF44SWIEKVRRM · pith_short_8: BRGAF44S

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/BRGAF44SWIEKVRRM6DS2FZQSB5 \
  | 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: 0c4c02f392b208aac62cf0e5a2e6120f7b0d31f1aed2dcc291df651fc4604e67

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "29d0619de024f0bf55bf6dcdc5e069c34eeb256d8ea3cd99707fecd5f65a1cca",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2016-05-16T14:54:18Z",
    "title_canon_sha256": "2d9b7c08b089b9996fdd893e5b52fcba65b1fef19efdbaa4dd81432083e4e3c4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1605.04789",
    "kind": "arxiv",
    "version": 1
  }
}