Pith Number

pith:7R6XZYII

pith:2017:7R6XZYII25ZPZPEOH6V43AID2Y

not attested not anchored not stored refs pending

Bifocal Fresnel lens based on the polarization-sensitive metasurface

Dmitrii Filonov, Hen Markovich, Ivan Shishkin, Pavel Ginzburg

arxiv:1707.03652 v1 · 2017-07-12 · physics.optics

Open paper page JSON Open Graph Bundle Merged state What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7R6XZYII25ZPZPEOH6V43AID2Y}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T00:15:21.677480Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc7d7ce108d772fcbc8e3fabcd8103d62f443a9d6bbadb873e0a456b5cddddbf

Aliases

arxiv: 1707.03652 · arxiv_version: 1707.03652v1 · doi: 10.48550/arxiv.1707.03652 · pith_short_12: 7R6XZYII25ZP · pith_short_16: 7R6XZYII25ZPZPEO · pith_short_8: 7R6XZYII

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/7R6XZYII25ZPZPEOH6V43AID2Y \
  | 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: fc7d7ce108d772fcbc8e3fabcd8103d62f443a9d6bbadb873e0a456b5cddddbf

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "32967b924d99b936041644a09f511b8ad828e2c762ee9b79980935ea9188dec7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2017-07-12T11:27:52Z",
    "title_canon_sha256": "3ef769dbd41e0d7ecdeac768a979932fc8c4131e47a68ee2042fcefc65cd1dfb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1707.03652",
    "kind": "arxiv",
    "version": 1
  }
}