Pith Number

pith:5X4MH3IY

pith:2018:5X4MH3IY2OIB6TY27A4CPL4BQG

not attested not anchored not stored refs pending

Dynamical Systems Perspective of Cosmological Finite-time Singularities in $f(R)$ Gravity and Interacting Multifluid Cosmology

S.D. Odintsov, V.K. Oikonomou

arxiv:1806.07295 v1 · 2018-06-19 · gr-qc · astro-ph.CO · hep-th

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5X4MH3IY2OIB6TY27A4CPL4BQG}

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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

Spectrum of pure $R^2$ gravity: full Hamiltonian analysis

Causality Violating Solutions in Curvature-Squared Gravity

Receipt and verification

First computed	2026-05-18T00:09:24.382093Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

edf8c3ed18d3901f4f1af83827af81818df8d9c246786953841797bfb8ca0b4b

Aliases

arxiv: 1806.07295 · arxiv_version: 1806.07295v1 · doi: 10.48550/arxiv.1806.07295 · pith_short_12: 5X4MH3IY2OIB · pith_short_16: 5X4MH3IY2OIB6TY2 · pith_short_8: 5X4MH3IY

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/5X4MH3IY2OIB6TY27A4CPL4BQG \
  | 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: edf8c3ed18d3901f4f1af83827af81818df8d9c246786953841797bfb8ca0b4b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d06b3689ec20422ed6148cc89eae4be600bb57ffc2c36e006de10b5b89a48839",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2018-06-19T14:55:59Z",
    "title_canon_sha256": "43760fb510082de14c910acca94bc6afb0d77307a415a08d0b5568b43ebee7b7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1806.07295",
    "kind": "arxiv",
    "version": 1
  }
}