Pith Number

pith:FXJJOUTX

pith:2010:FXJJOUTXXXJRHFYRYMPFJUTER5

not attested not anchored not stored refs pending

Testing Lorentz Invariance by Comparing Light Propagation in Vacuum and Matter

A. Peters, A. Senger, E.V. Kovalchuk, K. D\"oringshoff, K. M\"ohle, M. Nagel, S. Herrmann

arxiv:1008.1205 v2 · 2010-08-06 · physics.ins-det · hep-ph · physics.optics

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FXJJOUTXXXJRHFYRYMPFJUTER5}

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	2026-05-18T00:37:05.401550Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2dd2975277bdd3139711c31e54d2648f78fca7cc88cd52bb45917aea26e3bfe7

Aliases

arxiv: 1008.1205 · arxiv_version: 1008.1205v2 · doi: 10.48550/arxiv.1008.1205 · pith_short_12: FXJJOUTXXXJR · pith_short_16: FXJJOUTXXXJRHFYR · pith_short_8: FXJJOUTX

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/FXJJOUTXXXJRHFYRYMPFJUTER5 \
  | 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: 2dd2975277bdd3139711c31e54d2648f78fca7cc88cd52bb45917aea26e3bfe7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0af37246cadafdf0555b176cb3f11d9264e1250823f077f812ef5ca0cca42ed9",
    "cross_cats_sorted": [
      "hep-ph",
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.ins-det",
    "submitted_at": "2010-08-06T14:12:54Z",
    "title_canon_sha256": "e109a1008d5fd1dcfce3a679858b13c083dcf5890a19dc57cd251e46e8f902d5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1008.1205",
    "kind": "arxiv",
    "version": 2
  }
}