Pith Number

pith:4V6IDE5R

pith:2014:4V6IDE5RWWCI3QCI5S7ZPMZ6JD

not attested not anchored not stored refs pending

Anomaly-free cosmological perturbations in effective canonical quantum gravity

Aurelien Barrau, Gianluca Calcagni, Julien Grain, Martin Bojowald, Mikhail Kagan

arxiv:1404.1018 v2 · 2014-04-03 · gr-qc · astro-ph.CO · 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{4V6IDE5RWWCI3QCI5S7ZPMZ6JD}

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	2026-05-18T02:03:37.792888Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e57c8193b1b5848dc048ecbf97b33e48f98cd268743b3eda18c7ea8e4431f969

Aliases

arxiv: 1404.1018 · arxiv_version: 1404.1018v2 · doi: 10.48550/arxiv.1404.1018 · pith_short_12: 4V6IDE5RWWCI · pith_short_16: 4V6IDE5RWWCI3QCI · pith_short_8: 4V6IDE5R

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/4V6IDE5RWWCI3QCI5S7ZPMZ6JD \
  | 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: e57c8193b1b5848dc048ecbf97b33e48f98cd268743b3eda18c7ea8e4431f969

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "66ea8f6463b9c78561bc4c4d9fb293c1bd5308812395b7425675853aacdb6613",
    "cross_cats_sorted": [
      "astro-ph.CO",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2014-04-03T17:14:46Z",
    "title_canon_sha256": "fd015ed1968bfa906a1e37b6c40c23c96ecceccc7ca91f9f035cd30a87db5e07"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1404.1018",
    "kind": "arxiv",
    "version": 2
  }
}