Pith Number

pith:P4W2WLMQ

pith:2009:P4W2WLMQ3HZRYQHLHQNOLG7WGR

not attested not anchored not stored refs pending

Delta-N formalism for the evolution of the curvature perturbations in generalized multi-field inflation

Tomohiro Matsuda

arxiv:0906.2525 v2 · 2009-06-14 · hep-th · astro-ph.CO · 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{P4W2WLMQ3HZRYQHLHQNOLG7WGR}

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

Curvature Perturbations in the Effective Field Theory of Inflation

Receipt and verification

First computed	2026-07-04T17:16:23.609506Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f2dab2d90d9f31c40eb3c1ae59bf6347419c59f3c2d63f17ef8091eae5c9ed8

Aliases

arxiv: 0906.2525 · arxiv_version: 0906.2525v2 · doi: 10.48550/arxiv.0906.2525 · pith_short_12: P4W2WLMQ3HZR · pith_short_16: P4W2WLMQ3HZRYQHL · pith_short_8: P4W2WLMQ

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/P4W2WLMQ3HZRYQHLHQNOLG7WGR \
  | 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: 7f2dab2d90d9f31c40eb3c1ae59bf6347419c59f3c2d63f17ef8091eae5c9ed8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4b547877b083e8599d70fbad3d6243ad4fce8a34e55c44217aa4d597de3e1a24",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "gr-qc",
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2009-06-14T10:35:38Z",
    "title_canon_sha256": "639c03012076fd50cb26734ac51730c2874529158c48964e258cff72495e7373"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0906.2525",
    "kind": "arxiv",
    "version": 2
  }
}