Pith Number

pith:WGPXPLV7

pith:2011:WGPXPLV7DDLF244YN23IG275GY

not attested not anchored not stored refs pending

Influence of the sign of the refractive index in the reflectivity of a metamaterial surface with localized roughness

Ricardo A. Depine, Vivian Grunhut

arxiv:1102.2639 v1 · 2011-02-13 · 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{WGPXPLV7DDLF244YN23IG275GY}

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	2026-05-18T04:28:46.890767Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b19f77aebf18d65d73986eb6836bfd36000d50946de1ebd44369a5212782418b

Aliases

arxiv: 1102.2639 · arxiv_version: 1102.2639v1 · doi: 10.48550/arxiv.1102.2639 · pith_short_12: WGPXPLV7DDLF · pith_short_16: WGPXPLV7DDLF244Y · pith_short_8: WGPXPLV7

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/WGPXPLV7DDLF244YN23IG275GY \
  | 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: b19f77aebf18d65d73986eb6836bfd36000d50946de1ebd44369a5212782418b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6ce03b5e5a6f1b4ed61fc056f95549270272708957fabe6b2c4fb696b29f3c04",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2011-02-13T21:22:17Z",
    "title_canon_sha256": "421372bc428f4c875388afc8be9ba853b6a1b12119ff48a850102ee804fc15ce"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.2639",
    "kind": "arxiv",
    "version": 1
  }
}