Pith Number

pith:F7X4RT6C

pith:2013:F7X4RT6C5SZLCLJXI33BCVRPET

not attested not anchored not stored refs pending

Noether Identities and Gauge-Fixing the Action for Cosmological Perturbations

Macarena Lagos, M\'aximo Ba\~nados, Pedro G. Ferreira, Sebasti\'an Garc\'ia-S\'aenz

arxiv:1311.3828 v2 · 2013-11-15 · gr-qc · astro-ph.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{F7X4RT6C5SZLCLJXI33BCVRPET}

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.

Receipt and verification

First computed	2026-05-18T02:59:34.203853Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2fefc8cfc2ecb2b12d3746f611562f24e7a8981c5bf178bc223775490f54ee40

Aliases

arxiv: 1311.3828 · arxiv_version: 1311.3828v2 · doi: 10.48550/arxiv.1311.3828 · pith_short_12: F7X4RT6C5SZL · pith_short_16: F7X4RT6C5SZLCLJX · pith_short_8: F7X4RT6C

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/F7X4RT6C5SZLCLJXI33BCVRPET \
  | 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: 2fefc8cfc2ecb2b12d3746f611562f24e7a8981c5bf178bc223775490f54ee40

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ecb9d6e86aacf4154c55d8f039dcd0685edda2bf00a3a91d4229305475920603",
    "cross_cats_sorted": [
      "astro-ph.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2013-11-15T12:39:15Z",
    "title_canon_sha256": "2793cf387cd26b9a54e9a55e502fc94a86d4980edf1eced20689199b0c11cdeb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.3828",
    "kind": "arxiv",
    "version": 2
  }
}