Pith Number

pith:KP25HPZU

pith:2003:KP25HPZU2VDQJ5USK3P5DGXBNE

not attested not anchored not stored refs pending

Comments on ``Improved limit on quantum-spacetime modifications of Lorentz symmetry from observations of gamma-ray blazars"

D. Mattingly, S. Liberati, T. Jacobson

arxiv:gr-qc/0303001 v1 · 2003-03-01 · 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{KP25HPZU2VDQJ5USK3P5DGXBNE}

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	2026-07-04T14:25:39.477265Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

53f5d3bf34d54704f69256dfd19ae1690db28e60839b2c8f4647d0839fa9a715

Aliases

arxiv: gr-qc/0303001 · arxiv_version: gr-qc/0303001v1 · doi: 10.48550/arxiv.gr-qc/0303001 · pith_short_12: KP25HPZU2VDQ · pith_short_16: KP25HPZU2VDQJ5US · pith_short_8: KP25HPZU

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/KP25HPZU2VDQJ5USK3P5DGXBNE \
  | 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: 53f5d3bf34d54704f69256dfd19ae1690db28e60839b2c8f4647d0839fa9a715

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "edcca08b54ae7804635360431e06765014292026fa9b5cacd372691a7fdf1c31",
    "cross_cats_sorted": [
      "astro-ph",
      "hep-ph",
      "hep-th"
    ],
    "license": "",
    "primary_cat": "gr-qc",
    "submitted_at": "2003-03-01T05:07:21Z",
    "title_canon_sha256": "77a11eb86878fdfb18e8ebbf9424562219e235f9f7d8ae21793e337dce762d2c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "gr-qc/0303001",
    "kind": "arxiv",
    "version": 1
  }
}