Pith Number

pith:6B7DM4TK

pith:2008:6B7DM4TKYWURWRUNVSOJ7HMVJR

not attested not anchored not stored refs pending

The Boundary Conditions for Point Transformed Electromagnetic Invisibility Cloaks

Ricardo Weder

arxiv:0801.3611 v2 · 2008-01-23 · 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{6B7DM4TKYWURWRUNVSOJ7HMVJR}

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	2026-07-04T17:08:57.701235Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f07e36726ac5a91b468dac9c9f9d954c5f34d96524414fc0514cda62586752f3

Aliases

arxiv: 0801.3611 · arxiv_version: 0801.3611v2 · doi: 10.48550/arxiv.0801.3611 · pith_short_12: 6B7DM4TKYWUR · pith_short_16: 6B7DM4TKYWURWRUN · pith_short_8: 6B7DM4TK

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/6B7DM4TKYWURWRUNVSOJ7HMVJR \
  | 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: f07e36726ac5a91b468dac9c9f9d954c5f34d96524414fc0514cda62586752f3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8088121e2ae06ffdfa87cde8103c88b04bb43a09592516c60aa03490e26092c1",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2008-01-23T16:06:58Z",
    "title_canon_sha256": "2bcb205611d962c150ad9f1f40021ef25e35a84846f873a92bf5e243354dcaae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0801.3611",
    "kind": "arxiv",
    "version": 2
  }
}