Pith Number

pith:Q33OP33N

pith:2011:Q33OP33ND33MMGNDZSODYFJODO

not attested not anchored not stored refs pending

Invisibility cloaking without superluminal propagation

Janos Perczel, Tomas Tyc, Ulf Leonhardt

arxiv:1105.0164 v3 · 2011-05-01 · 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{Q33OP33ND33MMGNDZSODYFJODO}

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	2026-05-18T02:02:10.548980Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

86f6e7ef6d1ef6c619a3cc9c3c152e1b9d8077cbe09ceff5120dabc89303f6b4

Aliases

arxiv: 1105.0164 · arxiv_version: 1105.0164v3 · doi: 10.48550/arxiv.1105.0164 · pith_short_12: Q33OP33ND33M · pith_short_16: Q33OP33ND33MMGND · pith_short_8: Q33OP33N

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/Q33OP33ND33MMGNDZSODYFJODO \
  | 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: 86f6e7ef6d1ef6c619a3cc9c3c152e1b9d8077cbe09ceff5120dabc89303f6b4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7591e09cded1840f163c4b52aaf1067948cb51a571a12688815f7b7b5114efc9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2011-05-01T12:38:03Z",
    "title_canon_sha256": "bbe79db0f4c5bf3adf038a123db0a98123f46ecd5e7268e28df7ff9ec6944d26"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1105.0164",
    "kind": "arxiv",
    "version": 3
  }
}