Pith Number

pith:42IQWNFL

pith:2013:42IQWNFLYMZMZ5Q6RUDMMRZXUM

not attested not anchored not stored refs pending

Bispectrum of cosmological density perturbations in the most general second-order scalar-tensor theory

Ayumu Terukina, Kazuhiro Yamamoto, Yuichiro Takushima

arxiv:1311.0281 v1 · 2013-11-01 · 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{42IQWNFLYMZMZ5Q6RUDMMRZXUM}

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	2026-05-18T02:52:04.085766Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e6910b34abc332ccf61e8d06c64737a31582bde40437b8ae4a047be9b6bacb83

Aliases

arxiv: 1311.0281 · arxiv_version: 1311.0281v1 · doi: 10.48550/arxiv.1311.0281 · pith_short_12: 42IQWNFLYMZM · pith_short_16: 42IQWNFLYMZMZ5Q6 · pith_short_8: 42IQWNFL

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/42IQWNFLYMZMZ5Q6RUDMMRZXUM \
  | 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: e6910b34abc332ccf61e8d06c64737a31582bde40437b8ae4a047be9b6bacb83

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8ffeea3661492b21f18b7870f756a0f226e5aea594a271b404232fc65d3d225b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2013-11-01T07:48:50Z",
    "title_canon_sha256": "e3418eb74fdab5575f862b29aa97fd168bf9aa8e978c4da901dbb4c037e1bf70"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1311.0281",
    "kind": "arxiv",
    "version": 1
  }
}