Pith Number

pith:NTZZZVBC

pith:2008:NTZZZVBC35POOYWUSMVGMTAL3C

not attested not anchored not stored refs pending

The quantum theory of scalar fields on the de Sitter expanding universe

Adrian Pop, Cosmin Crucean, Ion I. Cotaescu

arxiv:0802.1972 v1 · 2008-02-14 · 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{NTZZZVBC35POOYWUSMVGMTAL3C}

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.

Cited by

1 paper in Pith

Propagating degrees of freedom on maximally-symmetric backgrounds in $f(R)$ theories of gravity

Receipt and verification

First computed	2026-07-04T15:31:00.502879Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6cf39cd422df5ee762d4932a664c0bd89ff54c129736bd9349b47aebf2e4263e

Aliases

arxiv: 0802.1972 · arxiv_version: 0802.1972v1 · doi: 10.48550/arxiv.0802.1972 · pith_short_12: NTZZZVBC35PO · pith_short_16: NTZZZVBC35POOYWU · pith_short_8: NTZZZVBC

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/NTZZZVBC35POOYWUSMVGMTAL3C \
  | 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: 6cf39cd422df5ee762d4932a664c0bd89ff54c129736bd9349b47aebf2e4263e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4ad1898e6ec269794b8e0fd8e0e8dd6a2883e688b519b41e6f1b01573d44af72",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2008-02-14T08:11:20Z",
    "title_canon_sha256": "b917cfa321f7131df704184ec59dd11ed8767726af52c45906562fc4da4f6511"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0802.1972",
    "kind": "arxiv",
    "version": 1
  }
}