Pith Number

pith:F6TVQ24L

pith:2015:F6TVQ24LB6JMET7NTXMVLCLDFL

not attested not anchored not stored refs pending

No Open or Flat Bouncing Cosmologies in Einstein Gravity

Maulik K. Parikh

arxiv:1501.04606 v2 · 2015-01-19 · hep-th · astro-ph.CO · 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{F6TVQ24LB6JMET7NTXMVLCLDFL}

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

Energy conditions of bouncing solutions in quadratic curvature gravity coupled with a scalar field

Receipt and verification

First computed	2026-05-18T02:28:53.640152Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2fa7586b8b0f92c24fed9dd95589632ac2a861c71e2ae3820057999a7346bba2

Aliases

arxiv: 1501.04606 · arxiv_version: 1501.04606v2 · doi: 10.48550/arxiv.1501.04606 · pith_short_12: F6TVQ24LB6JM · pith_short_16: F6TVQ24LB6JMET7N · pith_short_8: F6TVQ24L

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/F6TVQ24LB6JMET7NTXMVLCLDFL \
  | 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: 2fa7586b8b0f92c24fed9dd95589632ac2a861c71e2ae3820057999a7346bba2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5ff37dd515e6941b28bce83f8d0141ec8bc80360242533c0b9351a48f7c5afa8",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2015-01-19T20:07:07Z",
    "title_canon_sha256": "17ef0fb01e6b68311a1596cc88e1a0e46eef5be1061b7281becf434acf37806e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1501.04606",
    "kind": "arxiv",
    "version": 2
  }
}