Pith Number

pith:WOMCAWDO

pith:2004:WOMCAWDO2GFIB66DGRJZK5RUHW

not attested not anchored not stored refs pending

Lorentz invariance and quantum gravity: an additional fine-tuning problem?

Alejandro Perez, Daniel Sudarsky, H\'ector Vucetich, John Collins, Luis Urrutia

arxiv:gr-qc/0403053 v4 · 2004-03-12 · gr-qc · 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{WOMCAWDO2GFIB66DGRJZK5RUHW}

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	2026-07-04T17:25:19.480283Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b39820586ed18a80fbc334539576343d889fab23aa9d062e3e47b9faae2c2ff1

Aliases

arxiv: gr-qc/0403053 · arxiv_version: gr-qc/0403053v4 · doi: 10.48550/arxiv.gr-qc/0403053 · pith_short_12: WOMCAWDO2GFI · pith_short_16: WOMCAWDO2GFIB66D · pith_short_8: WOMCAWDO

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/WOMCAWDO2GFIB66DGRJZK5RUHW \
  | 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: b39820586ed18a80fbc334539576343d889fab23aa9d062e3e47b9faae2c2ff1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "832b7d01f13846d20ac9a057f287b10b8425f7d205428552473d2edd918972e1",
    "cross_cats_sorted": [
      "hep-ph"
    ],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2004-03-12T23:20:31Z",
    "title_canon_sha256": "f14af96d0b49a68df1bdea0cf15d4e1731ea1a277430bb8080b32b6bc5c2718a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0403053",
    "kind": "arxiv",
    "version": 4
  }
}