Pith Number

pith:YSRZR4R6

pith:2013:YSRZR4R6LOKWS5JDPNHFUHPBD7

not attested not anchored not stored refs pending

Large Tensor-to-Scalar Ratio in Small-Field Inflation

Takeshi Kobayashi, Tomo Takahashi

arxiv:1303.0242 v2 · 2013-03-01 · astro-ph.CO · gr-qc · hep-ph · hep-th

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YSRZR4R6LOKWS5JDPNHFUHPBD7}

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	2026-05-18T03:19:13.115819Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c4a398f23e5b956975237b4e5a1de11fff5f2d446d61b3408d75a6d1fda40659

Aliases

arxiv: 1303.0242 · arxiv_version: 1303.0242v2 · doi: 10.48550/arxiv.1303.0242 · pith_short_12: YSRZR4R6LOKW · pith_short_16: YSRZR4R6LOKWS5JD · pith_short_8: YSRZR4R6

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/YSRZR4R6LOKWS5JDPNHFUHPBD7 \
  | 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: c4a398f23e5b956975237b4e5a1de11fff5f2d446d61b3408d75a6d1fda40659

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "187b247db0fcd80485ecda9c8da9d57a8bb6dca283fc7b658d29796f7c5afe34",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-ph",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-03-01T18:14:31Z",
    "title_canon_sha256": "d268c6a44df79eeecbcc0a7800b3043c558e93f5164e505fcffbe01b3a8a674e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.0242",
    "kind": "arxiv",
    "version": 2
  }
}