Pith Number

pith:4AQZYY5E

pith:2018:4AQZYY5ED2W4G6RC22GJDCU56E

not attested not anchored not stored refs pending

Scalar spectra of primordial perturbations in loop quantum cosmology

Aur\'elien Barrau, Flora Moulin, Killian Martineau, Pierre Jamet

arxiv:1807.06047 v2 · 2018-07-16 · gr-qc · astro-ph.CO · hep-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4AQZYY5ED2W4G6RC22GJDCU56E}

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	2026-05-18T00:03:46.162100Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e0219c63a41eadc37a22d68c918a9df10e532277f23bb24dadc7d3a57073222b

Aliases

arxiv: 1807.06047 · arxiv_version: 1807.06047v2 · doi: 10.48550/arxiv.1807.06047 · pith_short_12: 4AQZYY5ED2W4 · pith_short_16: 4AQZYY5ED2W4G6RC · pith_short_8: 4AQZYY5E

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/4AQZYY5ED2W4G6RC22GJDCU56E \
  | 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: e0219c63a41eadc37a22d68c918a9df10e532277f23bb24dadc7d3a57073222b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8a98a98f32de96d839c1898ecb9c995c527dc3317bf4a8ef40f721132ff12954",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2018-07-16T18:20:40Z",
    "title_canon_sha256": "6a6452b957712d1c568741c4671b03130ee13285e9837fc88f77eae909b29298"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.06047",
    "kind": "arxiv",
    "version": 2
  }
}