Pith Number

pith:PCPMWYFM

pith:2019:PCPMWYFMSXAQBE4BKJTOT4FNIX

not attested not anchored not stored refs pending

Quantum Cosmological Backreactions III: Deparametrised Quantum Cosmological Perturbation Theory

S. Schander, T. Thiemann

arxiv:1906.08194 v1 · 2019-06-19 · 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{PCPMWYFMSXAQBE4BKJTOT4FNIX}

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	2026-05-17T23:42:54.356727Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

789ecb60ac95c10093815266e9f0ad45dadb0726a86b0df57afee90700559a16

Aliases

arxiv: 1906.08194 · arxiv_version: 1906.08194v1 · doi: 10.48550/arxiv.1906.08194 · pith_short_12: PCPMWYFMSXAQ · pith_short_16: PCPMWYFMSXAQBE4B · pith_short_8: PCPMWYFM

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/PCPMWYFMSXAQBE4BKJTOT4FNIX \
  | 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: 789ecb60ac95c10093815266e9f0ad45dadb0726a86b0df57afee90700559a16

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b5eadad192ff7bfc8c035d6aa9dd2c73ab6662b03e05ab6a99ba8911e9afd2ab",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2019-06-19T16:14:38Z",
    "title_canon_sha256": "8085303b532bc3ae3f7120ebc812cb02d6d47488aa10b19de260be351005d912"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.08194",
    "kind": "arxiv",
    "version": 1
  }
}