Pith Number

pith:SD4FQLDE

pith:2004:SD4FQLDEDARAHMCWS3DQ7XQH7D

not attested not anchored not stored refs pending

Quantum Gravity Phenomenology and Lorentz Violation

David Mattingly, Stefano Liberati, Ted Jacobson

arxiv:gr-qc/0404067 v1 · 2004-04-15 · 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{SD4FQLDEDARAHMCWS3DQ7XQH7D}

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	2026-05-18T01:39:22.592017Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

90f8582c64182203b05696c70fde07f8c36178c090a7066648e290106e8910b0

Aliases

arxiv: gr-qc/0404067 · arxiv_version: gr-qc/0404067v1 · doi: 10.48550/arxiv.gr-qc/0404067 · pith_short_12: SD4FQLDEDARA · pith_short_16: SD4FQLDEDARAHMCW · pith_short_8: SD4FQLDE

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/SD4FQLDEDARAHMCWS3DQ7XQH7D \
  | 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: 90f8582c64182203b05696c70fde07f8c36178c090a7066648e290106e8910b0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2bd2c3d662c9e147477ccb1afd7eb562bf69e8be1e6edd3365cb71c19e22269c",
    "cross_cats_sorted": [
      "astro-ph",
      "hep-ph",
      "hep-th"
    ],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2004-04-15T17:13:32Z",
    "title_canon_sha256": "d31b018111c2d79b89ada7d2ab57f442294ef5b5280e3d732893789143da88d8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0404067",
    "kind": "arxiv",
    "version": 1
  }
}