Pith Number

pith:YYCTDPXN

pith:2002:YYCTDPXNPS6J7QTICMRNW2JBUH

not attested not anchored not stored refs pending

Cosmology with positive and negative exponential potentials

David Wands (Portsmouth), Imogen P. C. Heard

arxiv:gr-qc/0206085 v1 · 2002-06-28 · gr-qc · 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{YYCTDPXNPS6J7QTICMRNW2JBUH}

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

Cosmology in symmetric teleparallel gravity and its dynamical system

Dynamical systems analysis of an Einstein-Cartan ekpyrotic nonsingular bounce cosmology

Receipt and verification

First computed	2026-07-04T16:33:45.088695Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c60531beed7cbc9fc2681322db6921a1f89d322627e9effb3f297d9b1db8948f

Aliases

arxiv: gr-qc/0206085 · arxiv_version: gr-qc/0206085v1 · doi: 10.48550/arxiv.gr-qc/0206085 · pith_short_12: YYCTDPXNPS6J · pith_short_16: YYCTDPXNPS6J7QTI · pith_short_8: YYCTDPXN

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/YYCTDPXNPS6J7QTICMRNW2JBUH \
  | 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: c60531beed7cbc9fc2681322db6921a1f89d322627e9effb3f297d9b1db8948f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e41c8e914045ee0d6b1258cfee5ca9c28a61343b64e763a49014e740502227b0",
    "cross_cats_sorted": [
      "hep-th"
    ],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2002-06-28T10:17:26Z",
    "title_canon_sha256": "3f9ce34cbb95dadc03e888ceeac6d7bd3a91a7f692f20a18a7acdab305ff608c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0206085",
    "kind": "arxiv",
    "version": 1
  }
}