Pith Number

pith:3FADQ3CT

pith:2012:3FADQ3CTY6LRP5BUVRSKBQLLFL

not attested not anchored not stored refs pending

IR Divergence in Inflationary Tensor Perturbations from Fermion Loops

Kaixi Feng, Yi-Fu Cai, Yun-Song Piao

arxiv:1207.4405 v2 · 2012-07-18 · 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{3FADQ3CTY6LRP5BUVRSKBQLLFL}

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	2026-05-18T03:40:16.002434Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d940386c53c79717f434ac64a0c16b2af0e79873108a5d1264009ad203fd260b

Aliases

arxiv: 1207.4405 · arxiv_version: 1207.4405v2 · doi: 10.48550/arxiv.1207.4405 · pith_short_12: 3FADQ3CTY6LR · pith_short_16: 3FADQ3CTY6LRP5BU · pith_short_8: 3FADQ3CT

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/3FADQ3CTY6LRP5BUVRSKBQLLFL \
  | 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: d940386c53c79717f434ac64a0c16b2af0e79873108a5d1264009ad203fd260b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9288c804176cfefa79a1a33086d4994e61bc7ad10d289e456900eeeb0cfae1fa",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2012-07-18T16:07:39Z",
    "title_canon_sha256": "af1ac56e8d56edc98873a58ad49aa08d70b488de6c22c8656c66d24ad352e548"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.4405",
    "kind": "arxiv",
    "version": 2
  }
}