Pith Number

pith:B4Z4FKAB

pith:2013:B4Z4FKABDXIEMYVWYCVJ52CVD3

not attested not anchored not stored refs pending

Effective Field Theory of Cosmological Perturbations

Federico Piazza, Filippo Vernizzi

arxiv:1307.4350 v2 · 2013-07-16 · 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{B4Z4FKABDXIEMYVWYCVJ52CVD3}

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

The Quintom theory of dark energy after DESI DR2

Receipt and verification

First computed	2026-05-18T01:48:49.525751Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0f33c2a8011dd04662b6c0aa9ee8551ed957ba7e69ac19bb649bbe75397e6529

Aliases

arxiv: 1307.4350 · arxiv_version: 1307.4350v2 · doi: 10.48550/arxiv.1307.4350 · pith_short_12: B4Z4FKABDXIE · pith_short_16: B4Z4FKABDXIEMYVW · pith_short_8: B4Z4FKAB

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/B4Z4FKABDXIEMYVWYCVJ52CVD3 \
  | 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: 0f33c2a8011dd04662b6c0aa9ee8551ed957ba7e69ac19bb649bbe75397e6529

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ff91b3a81b93b34dd3e6d0d835acc94ebe07819de89b965a2aeb364f8dbfbaf3",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2013-07-16T17:28:30Z",
    "title_canon_sha256": "3bd886f08a19d470eb31643239a17e845d5bcb2bb1dd5d8e361d4621334c8a30"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.4350",
    "kind": "arxiv",
    "version": 2
  }
}