Pith Number

pith:2WYBD7RN

pith:2017:2WYBD7RNJZAHCTOGMIQBWSZKWB

not attested not anchored not stored refs pending

Gradient metasurfaces: a review of fundamentals and applications

Anders Pors, Fei Ding, Sergey I. Bozhevolnyi

arxiv:1704.03032 v2 · 2017-04-10 · 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{2WYBD7RNJZAHCTOGMIQBWSZKWB}

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	2026-05-18T00:37:47.603440Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d5b011fe2d4e40714dc662201b4b2ab065fd7a67ac07df248b69f0e40dbef2c1

Aliases

arxiv: 1704.03032 · arxiv_version: 1704.03032v2 · doi: 10.48550/arxiv.1704.03032 · pith_short_12: 2WYBD7RNJZAH · pith_short_16: 2WYBD7RNJZAHCTOG · pith_short_8: 2WYBD7RN

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/2WYBD7RNJZAHCTOGMIQBWSZKWB \
  | 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: d5b011fe2d4e40714dc662201b4b2ab065fd7a67ac07df248b69f0e40dbef2c1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e4b5e35053d03ae73960de4dc9a02f982423ee914ce5f7f5726e591823477ea6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2017-04-10T19:35:45Z",
    "title_canon_sha256": "44f2bc0ce2a3612816b717f737918f2b80dced616d8e676f0f1d55911bcd7759"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.03032",
    "kind": "arxiv",
    "version": 2
  }
}