Pith Number

pith:5PJGOZY6

pith:2011:5PJGOZY6BCWX4FBFWJAZOSVJDZ

not attested not anchored not stored refs pending

Dirac's scalar field as an effective component of the dark energy and an evolution of the cosmological "constant"

B.N. Frolov, O.V. Babourova, R.S. Kostkin

arxiv:1102.2901 v1 · 2011-02-14 · 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{5PJGOZY6BCWX4FBFWJAZOSVJDZ}

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	2026-05-18T04:28:38.747290Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ebd267671e08ad7e1425b241974aa91e654129127be7089e47d4246c3ee05ca9

Aliases

arxiv: 1102.2901 · arxiv_version: 1102.2901v1 · doi: 10.48550/arxiv.1102.2901 · pith_short_12: 5PJGOZY6BCWX · pith_short_16: 5PJGOZY6BCWX4FBF · pith_short_8: 5PJGOZY6

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/5PJGOZY6BCWX4FBFWJAZOSVJDZ \
  | 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: ebd267671e08ad7e1425b241974aa91e654129127be7089e47d4246c3ee05ca9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0f1b539278a585ae38cc34bb558fb19425119a3a8ca9e4fe500df3b89b437ec3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2011-02-14T21:19:36Z",
    "title_canon_sha256": "df06c212e25e3d2248df78709ba7cadbc2d3debe25c9d5f9a67553ad3b0896ca"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.2901",
    "kind": "arxiv",
    "version": 1
  }
}