Pith Number

pith:ZBDCDCKM

pith:2008:ZBDCDCKM2B6C2ZEZ3JYNRYOMVY

not attested not anchored not stored refs pending

Superantenna made of transformation media

Tomas Tyc, Ulf Leonhardt

arxiv:0806.0070 v1 · 2008-05-31 · 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{ZBDCDCKM2B6C2ZEZ3JYNRYOMVY}

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	2026-05-18T02:49:52.558114Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c84621894cd07c2d6499da70d8e1ccae1342f5b172f8d108eb75a348e4b01e55

Aliases

arxiv: 0806.0070 · arxiv_version: 0806.0070v1 · doi: 10.48550/arxiv.0806.0070 · pith_short_12: ZBDCDCKM2B6C · pith_short_16: ZBDCDCKM2B6C2ZEZ · pith_short_8: ZBDCDCKM

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/ZBDCDCKM2B6C2ZEZ3JYNRYOMVY \
  | 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: c84621894cd07c2d6499da70d8e1ccae1342f5b172f8d108eb75a348e4b01e55

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "98df05f2e44e54e8bfe143ae737e616b675662f7a21a31bf8ee862f9597f5d0b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2008-05-31T11:13:48Z",
    "title_canon_sha256": "ef4263060c22716b7bf2e61736663a6c21e13d5e6f65bad09542daa1282bb7a6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0806.0070",
    "kind": "arxiv",
    "version": 1
  }
}