Pith Number

pith:7ON3QPQF

pith:2008:7ON3QPQFV3LSRYFLXGCB5RPNHH

not attested not anchored not stored refs pending

Hiding Under the Carpet: a New Strategy for Cloaking

J. B. Pendry, Jensen Li

arxiv:0806.4396 v1 · 2008-06-26 · 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{7ON3QPQFV3LSRYFLXGCB5RPNHH}

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.

Cited by

2 papers in Pith

The G\"odel Universe as a Superconductor

Receipt and verification

First computed	2026-07-04T17:11:33.041760Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fb9bb83e05aed728e0abb9841ec5ed39def919ca77210f2f13e3f6683a6897c0

Aliases

arxiv: 0806.4396 · arxiv_version: 0806.4396v1 · doi: 10.48550/arxiv.0806.4396 · pith_short_12: 7ON3QPQFV3LS · pith_short_16: 7ON3QPQFV3LSRYFL · pith_short_8: 7ON3QPQF

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/7ON3QPQFV3LSRYFLXGCB5RPNHH \
  | 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: fb9bb83e05aed728e0abb9841ec5ed39def919ca77210f2f13e3f6683a6897c0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6f65c482b8595bc033497eb608bad483c1449f232d5abf9c8c3954a0e96a7469",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2008-06-26T21:02:11Z",
    "title_canon_sha256": "4a3e583d5e6d642e2ddf6bcbccd00e14837d4fddfb99d5467e313fbb2c2438c4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0806.4396",
    "kind": "arxiv",
    "version": 1
  }
}