Pith Number

pith:WI43CBEJ

pith:2007:WI43CBEJDTQZWGLSDIPE22RYTJ

not attested not anchored not stored refs pending

Cosmological Acceleration from Virtual Gravitons

(2) Research Institute of Physics, Daniel Usikov, Grigory Vereshkov (2)((1) Physics Department, Leonid Marochnik (1), Southern Federal University), University of Maryland

arxiv:0709.2537 v3 · 2007-09-17 · gr-qc · astro-ph · hep-ph · hep-th

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WI43CBEJDTQZWGLSDIPE22RYTJ}

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	2026-05-18T03:19:57.233873Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b239b104891ce19b19721a1e4d6a389a649f45b87f0eda63584be194c21dd88a

Aliases

arxiv: 0709.2537 · arxiv_version: 0709.2537v3 · doi: 10.48550/arxiv.0709.2537 · pith_short_12: WI43CBEJDTQZ · pith_short_16: WI43CBEJDTQZWGLS · pith_short_8: WI43CBEJ

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/WI43CBEJDTQZWGLSDIPE22RYTJ \
  | 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: b239b104891ce19b19721a1e4d6a389a649f45b87f0eda63584be194c21dd88a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9e2725814aedb780ca270625918bdc061202c9ac0400bd81cbe7863113fc03bf",
    "cross_cats_sorted": [
      "astro-ph",
      "hep-ph",
      "hep-th"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "gr-qc",
    "submitted_at": "2007-09-17T07:06:05Z",
    "title_canon_sha256": "07e98f8bd8eba8909dde8ebc5a57cada9ad1c00962c68266b6aed2c54bd247b0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0709.2537",
    "kind": "arxiv",
    "version": 3
  }
}