Pith Number

pith:V3HZODB5

pith:2007:V3HZODB57EHQZH6FGJHAUSHEW3

not attested not anchored not stored refs pending

A Rigorous Time-Domain Analysis of Full--Wave Electromagnetic Cloaking (Invisibility)

Ricardo Weder

arxiv:0704.0248 v4 · 2007-04-02 · physics.optics · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{V3HZODB57EHQZH6FGJHAUSHEW3}

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	2026-07-04T15:09:14.334914Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aecf970c3df90f0c9fc5324e0a48e4b6e4ded0b03c1c5e63d12a9f83b9abe870

Aliases

arxiv: 0704.0248 · arxiv_version: 0704.0248v4 · doi: 10.48550/arxiv.0704.0248 · pith_short_12: V3HZODB57EHQ · pith_short_16: V3HZODB57EHQZH6F · pith_short_8: V3HZODB5

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/V3HZODB57EHQZH6FGJHAUSHEW3 \
  | 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: aecf970c3df90f0c9fc5324e0a48e4b6e4ded0b03c1c5e63d12a9f83b9abe870

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "23bf0043de6ff901dd76d6cb3eaa147b8fca2b3757a0f57586cb25157d3039d0",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "",
    "primary_cat": "physics.optics",
    "submitted_at": "2007-04-02T17:42:00Z",
    "title_canon_sha256": "23b0fab6d51e0f15474c33c6b77c31cf6723fc630822900f4232f839bbd2ace4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0704.0248",
    "kind": "arxiv",
    "version": 4
  }
}