Pith Number

pith:UQAU6OBS

pith:2014:UQAU6OBSMCS2EY6INW7YC7LUGX

not attested not anchored not stored refs pending

Passive Lossless Huygens Metasurfaces for Conversion of Arbitrary Source Field to Directive Radiation

Ariel Epstein, George V. Eleftheriades

arxiv:1409.1076 v1 · 2014-09-03 · 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{UQAU6OBSMCS2EY6INW7YC7LUGX}

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	2026-05-18T02:39:47.872437Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a4014f383260a5a263c86dbf817d7435f8ce84a94eef5f190558290d60f78655

Aliases

arxiv: 1409.1076 · arxiv_version: 1409.1076v1 · doi: 10.48550/arxiv.1409.1076 · pith_short_12: UQAU6OBSMCS2 · pith_short_16: UQAU6OBSMCS2EY6I · pith_short_8: UQAU6OBS

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/UQAU6OBSMCS2EY6INW7YC7LUGX \
  | 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: a4014f383260a5a263c86dbf817d7435f8ce84a94eef5f190558290d60f78655

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "040b62837e93099553e6c418e250c2e48453107c66e7b8ff74015d9e3e66c98f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.optics",
    "submitted_at": "2014-09-03T13:23:30Z",
    "title_canon_sha256": "f00380b2aa7e6bb42cad53dca96ac8a7d67a647efcb84a8b0cbcaf89bdd314fb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1409.1076",
    "kind": "arxiv",
    "version": 1
  }
}