Pith Number

pith:UEQVBQIQ

pith:2005:UEQVBQIQYGCZHHQG5ANJTBLIRE

not attested not anchored not stored refs pending

Positive-, negative-, and orthogonal-phase-velocity propagation of electromagnetic plane waves in a simply moving medium

Akhlesh Lakhtakia (Pennsylvania State University), Sandi Setiawan (University of Edinburgh), Tom G. Mackay (University of Edinburgh)

arxiv:physics/0511249 v2 · 2005-11-30 · physics.optics · physics.space-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{UEQVBQIQYGCZHHQG5ANJTBLIRE}

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	2026-05-18T01:38:07.382498Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a12150c110c185939e06e81a9985688931736613bcf5204ec1f79ccd9aba4dbe

Aliases

arxiv: physics/0511249 · arxiv_version: physics/0511249v2 · doi: 10.48550/arxiv.physics/0511249 · pith_short_12: UEQVBQIQYGCZ · pith_short_16: UEQVBQIQYGCZHHQG · pith_short_8: UEQVBQIQ

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/UEQVBQIQYGCZHHQG5ANJTBLIRE \
  | 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: a12150c110c185939e06e81a9985688931736613bcf5204ec1f79ccd9aba4dbe

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5a5b1c0b8a6f75ac8c81e4e0c889081fd59ba7adfde0667c386524201c6db163",
    "cross_cats_sorted": [
      "physics.space-ph"
    ],
    "license": "",
    "primary_cat": "physics.optics",
    "submitted_at": "2005-11-30T11:16:51Z",
    "title_canon_sha256": "40ab97cd6323907069088ed84a171f7119181c501db7fecdf9dd8099850749e3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "physics/0511249",
    "kind": "arxiv",
    "version": 2
  }
}