Pith Number

pith:GUPQGDZO

pith:2015:GUPQGDZONC2QQCLN23JPJMAKD6

not attested not anchored not stored refs pending

Suppressing the primordial tensor amplitude without changing the scalar sector in quadratic curvature gravity

Kohji Yajima, Tsutomu Kobayashi

arxiv:1508.07412 v2 · 2015-08-29 · 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{GUPQGDZONC2QQCLN23JPJMAKD6}

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	2026-05-18T01:27:22.727489Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

351f030f2e68b508096dd6d2f4b00a1fbcc3fe1864e5a89754ce83552fb43fad

Aliases

arxiv: 1508.07412 · arxiv_version: 1508.07412v2 · doi: 10.48550/arxiv.1508.07412 · pith_short_12: GUPQGDZONC2Q · pith_short_16: GUPQGDZONC2QQCLN · pith_short_8: GUPQGDZO

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/GUPQGDZONC2QQCLN23JPJMAKD6 \
  | 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: 351f030f2e68b508096dd6d2f4b00a1fbcc3fe1864e5a89754ce83552fb43fad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f33437d843488253228442fe8ee5a7b38e40c9a0ce16316a552a72059d68f101",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "gr-qc"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2015-08-29T06:42:01Z",
    "title_canon_sha256": "2e12af4b17c3a87e75c2a4efc16f9e1da036dd60b3de04d8d748ddce2ba5ddaa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1508.07412",
    "kind": "arxiv",
    "version": 2
  }
}