Pith. sign in
Pith Number

pith:CEUL37TS

pith:2007:CEUL37TSJECN67NRSXMVQPCTPV
not attested not anchored not stored refs pending

Effective Action of Vacuum: Semiclassical Approach

Brazil), Ilya L. Shapiro (UFJF, MG

arxiv:0801.0216 v2 · 2007-12-31 · gr-qc · astro-ph · hep-ph · hep-th

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{CEUL37TSJECN67NRSXMVQPCTPV}

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

4 papers in Pith

Receipt and verification
First computed 2026-07-04T15:28:06.476042Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

1128bdfe724904df7db195d9583c537d50cd39763a7a82158b5a94c55db1d164

Aliases

arxiv: 0801.0216 · arxiv_version: 0801.0216v2 · doi: 10.48550/arxiv.0801.0216 · pith_short_12: CEUL37TSJECN · pith_short_16: CEUL37TSJECN67NR · pith_short_8: CEUL37TS
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/CEUL37TSJECN67NRSXMVQPCTPV \
  | 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: 1128bdfe724904df7db195d9583c537d50cd39763a7a82158b5a94c55db1d164
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "c871052f211cc155b60e71710c39a2a43665d825303dfbe6b8a853eb3fcc8519",
    "cross_cats_sorted": [
      "astro-ph",
      "hep-ph",
      "hep-th"
    ],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2007-12-31T15:23:00Z",
    "title_canon_sha256": "7e3decbc39c8ea3d6e2843d0b516c7ddd8252afbfbf55c955e41ad6ad70cfd11"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0801.0216",
    "kind": "arxiv",
    "version": 2
  }
}