Pith Number

pith:VG3KMHNW

pith:2002:VG3KMHNW2J3XATGEUQPIDI3F2C

not attested not anchored not stored refs pending

On the Construction of Nonsingular Pre-Big-Bang and Ekpyrotic Cosmologies and the Resulting Density Perturbations

Fabio Finelli, Robert Brandenberger, Shinji Tsujikawa

arxiv:hep-th/0207228 v2 · 2002-07-25 · hep-th · astro-ph · gr-qc · hep-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{VG3KMHNW2J3XATGEUQPIDI3F2C}

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

Strong coupling and instabilities in singularity-free inflation from an infinite sum of curvature corrections

Receipt and verification

First computed	2026-07-04T16:34:50.556375Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a9b6a61db6d277704cc4a41e81a365d0ac40124727391a33924500e8fecebd55

Aliases

arxiv: hep-th/0207228 · arxiv_version: hep-th/0207228v2 · doi: 10.48550/arxiv.hep-th/0207228 · pith_short_12: VG3KMHNW2J3X · pith_short_16: VG3KMHNW2J3XATGE · pith_short_8: VG3KMHNW

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/VG3KMHNW2J3XATGEUQPIDI3F2C \
  | 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: a9b6a61db6d277704cc4a41e81a365d0ac40124727391a33924500e8fecebd55

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bd2d38b0b56cb65225b28eb83a08488eddd8c3bb2428c33040ee04ea833bb785",
    "cross_cats_sorted": [
      "astro-ph",
      "gr-qc",
      "hep-ph"
    ],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "2002-07-25T08:48:03Z",
    "title_canon_sha256": "8938df6a27f3a9908ef375cf9eaf59d798a0d986b0744e54d233b1141ab96991"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/0207228",
    "kind": "arxiv",
    "version": 2
  }
}