Pith Number

pith:S4CU3Q4X

pith:2023:S4CU3Q4XVRGKNNVOMDPX53GK4W

not attested not anchored not stored refs pending

Reconstruction of $f(R)$ Gravity from Cosmological Unified Dark Fluid Model

Esraa Ali Elkhateeb

arxiv:2301.13858 v4 · 2023-01-31 · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{S4CU3Q4XVRGKNNVOMDPX53GK4W}

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

1 paper in Pith

Nonlinear reconstruction of general dark energy theories

Receipt and verification

First computed	2026-07-05T07:19:18.227475Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

97054dc397ac4ca6b6ae60df7eeccae5b7c5eb52a1369785404ecfc1aa0f2f00

Aliases

arxiv: 2301.13858 · arxiv_version: 2301.13858v4 · doi: 10.48550/arxiv.2301.13858 · pith_short_12: S4CU3Q4XVRGK · pith_short_16: S4CU3Q4XVRGKNNVO · pith_short_8: S4CU3Q4X

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/S4CU3Q4XVRGKNNVOMDPX53GK4W \
  | 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: 97054dc397ac4ca6b6ae60df7eeccae5b7c5eb52a1369785404ecfc1aa0f2f00

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5968e01c522e01f973bbf12664ce993dc234e7d0b5d8c95fdd9120727acc5ef4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2023-01-31T18:55:08Z",
    "title_canon_sha256": "8f11db119e5f8d32d03a7f5c0b33b9feb4eaf5a40c213adc3d7c280357d60ca3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2301.13858",
    "kind": "arxiv",
    "version": 4
  }
}