Pith Number

pith:2GQOM5V3

pith:2018:2GQOM5V3PQGGWY6IK3GK7PRZSX

not attested not anchored not stored refs pending

Backreaction of fermionic perturbations in the Hamiltonian of hybrid loop quantum cosmology

Beatriz Elizaga Navascu\'es, Guillermo A. Mena Marug\'an, Santiago Prado Loy

arxiv:1805.04133 v2 · 2018-05-10 · 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{2GQOM5V3PQGGWY6IK3GK7PRZSX}

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	2026-05-18T00:04:29.931606Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d1a0e676bb7c0c6b63c856ccafbe3995dde3149802b9c31e4decda5f952d5866

Aliases

arxiv: 1805.04133 · arxiv_version: 1805.04133v2 · doi: 10.48550/arxiv.1805.04133 · pith_short_12: 2GQOM5V3PQGG · pith_short_16: 2GQOM5V3PQGGWY6I · pith_short_8: 2GQOM5V3

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/2GQOM5V3PQGGWY6IK3GK7PRZSX \
  | 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: d1a0e676bb7c0c6b63c856ccafbe3995dde3149802b9c31e4decda5f952d5866

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2a7837f47d39d45c466ce2421c51d333e5e31a5391a8496abd48edd060ca799a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2018-05-10T18:53:52Z",
    "title_canon_sha256": "b5162fab322023c6a83982e6e9496e14d0d8af157802eb36d575a6f1b60b8e05"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.04133",
    "kind": "arxiv",
    "version": 2
  }
}