Pith. sign in
Pith Number

pith:BQNISZV3

pith:2019:BQNISZV3OWRICA62IFEAZTIWVX
not attested not anchored not stored refs pending

Graduated dark energy: Observational hints of a spontaneous sign switch in the cosmological constant

J. Alberto Vazquez, John D. Barrow, Luis A. Escamilla, Ozgur Akarsu

arxiv:1912.08751 v2 · 2019-12-18 · astro-ph.CO · gr-qc · hep-ph · hep-th

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{BQNISZV3OWRICA62IFEAZTIWVX}

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

11 papers in Pith

Receipt and verification
First computed 2026-07-05T00:50:44.678734Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

0c1a8966bb75a28103da41480ccd16adcd764ffd958d5beffe34aa7abc73317e

Aliases

arxiv: 1912.08751 · arxiv_version: 1912.08751v2 · doi: 10.48550/arxiv.1912.08751 · pith_short_12: BQNISZV3OWRI · pith_short_16: BQNISZV3OWRICA62 · pith_short_8: BQNISZV3
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/BQNISZV3OWRICA62IFEAZTIWVX \
  | 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: 0c1a8966bb75a28103da41480ccd16adcd764ffd958d5beffe34aa7abc73317e
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "d3789d00fcd0c3f603b98cc882b731e958b41596dfd9fc3443384658ad92d995",
    "cross_cats_sorted": [
      "gr-qc",
      "hep-ph",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.CO",
    "submitted_at": "2019-12-18T17:31:25Z",
    "title_canon_sha256": "671b7f4077833a9a32bab5748675c42f418eb679cb1ed22bad11edb2cf3e51a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.08751",
    "kind": "arxiv",
    "version": 2
  }
}