Pith Number

pith:SR3Y4EX5

pith:2010:SR3Y4EX5I3336UODOYKI3LV4JL

not attested not anchored not stored refs pending

A near-perfect invisibility cloak constructed with homogeneous materials

Jianguo Guan, Qingjie Zhang, Wei Li, Wei Wang, Zhigang Sun

arxiv:1005.5206 v1 · 2010-05-28 · 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{SR3Y4EX5I3336UODOYKI3LV4JL}

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	2026-05-18T04:05:59.445010Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

94778e12fd46f7bf51c376148daebc4ac9cb028b92fd06f9333eb40b3974f698

Aliases

arxiv: 1005.5206 · arxiv_version: 1005.5206v1 · doi: 10.48550/arxiv.1005.5206 · pith_short_12: SR3Y4EX5I333 · pith_short_16: SR3Y4EX5I3336UOD · pith_short_8: SR3Y4EX5

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/SR3Y4EX5I3336UODOYKI3LV4JL \
  | 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: 94778e12fd46f7bf51c376148daebc4ac9cb028b92fd06f9333eb40b3974f698

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f039d2b1f1fcc32f48eb8544fde878d5b99237deca09c8a57b507bd4ad659c82",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2010-05-28T03:04:20Z",
    "title_canon_sha256": "ab5591bc104a8f0f0c673bdf6860bcaf68e210a8df57ae230502e2a7cd287054"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1005.5206",
    "kind": "arxiv",
    "version": 1
  }
}