Pith Number

pith:QL3LC2LV

pith:2008:QL3LC2LV5K6Y2DPZ3NBJBGL7YQ

not attested not anchored not stored refs pending

Ghost-Free Higher Derivative Quantum Gravity, the Hierarchy and the Cosmological Constant Problems

V.I. Tkach

arxiv:0808.3429 v4 · 2008-08-26 · hep-th · astro-ph · gr-qc · hep-ex · hep-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QL3LC2LV5K6Y2DPZ3NBJBGL7YQ}

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	2026-05-18T02:15:42.717967Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

82f6b16975eabd8d0df9db4290997fc41f59e030665038ff44473edccee036ce

Aliases

arxiv: 0808.3429 · arxiv_version: 0808.3429v4 · doi: 10.48550/arxiv.0808.3429 · pith_short_12: QL3LC2LV5K6Y · pith_short_16: QL3LC2LV5K6Y2DPZ · pith_short_8: QL3LC2LV

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/QL3LC2LV5K6Y2DPZ3NBJBGL7YQ \
  | 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: 82f6b16975eabd8d0df9db4290997fc41f59e030665038ff44473edccee036ce

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bb21bc77c034a1219a1c86f032409f3d65e5e9579a7f83637d3e2573bcab1f83",
    "cross_cats_sorted": [
      "astro-ph",
      "gr-qc",
      "hep-ex",
      "hep-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "hep-th",
    "submitted_at": "2008-08-26T01:53:10Z",
    "title_canon_sha256": "5792ed9f1b9c507c80875700f602789058d2c28426a2b0e4cf7ca923c078e9b9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0808.3429",
    "kind": "arxiv",
    "version": 4
  }
}