Pith Number

pith:X4QQG2RY

pith:2007:X4QQG2RY35OXFUSJLW2FTLMWKF

not attested not anchored not stored refs pending

Generating Ekpyrotic Curvature Perturbations Before the Big Bang

Jean-Luc Lehners, Neil Turok, Paul J. Steinhardt, Paul McFadden

arxiv:hep-th/0702153 v1 · 2007-02-19 · hep-th · astro-ph · 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{X4QQG2RY35OXFUSJLW2FTLMWKF}

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

Fully viable DHOST bounce with extra scalar

Receipt and verification

First computed	2026-07-04T15:25:21.529785Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bf21036a38df5d72d2495db459ad96514bb6244f2ea3a5a4758081c03d8424b9

Aliases

arxiv: hep-th/0702153 · arxiv_version: hep-th/0702153v1 · doi: 10.48550/arxiv.hep-th/0702153 · pith_short_12: X4QQG2RY35OX · pith_short_16: X4QQG2RY35OXFUSJ · pith_short_8: X4QQG2RY

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/X4QQG2RY35OXFUSJLW2FTLMWKF \
  | 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: bf21036a38df5d72d2495db459ad96514bb6244f2ea3a5a4758081c03d8424b9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eb15dd53587a2d243c5e962658205382dec8f9d5b9d5f689c51d05eb29655297",
    "cross_cats_sorted": [
      "astro-ph",
      "hep-ph"
    ],
    "license": "",
    "primary_cat": "hep-th",
    "submitted_at": "2007-02-19T21:01:05Z",
    "title_canon_sha256": "546a557b76f740898cd14d5d447181c4aabb67a1bbed3b4e2748ab621e272be7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "hep-th/0702153",
    "kind": "arxiv",
    "version": 1
  }
}