Pith Number

pith:IJFOPBPI

pith:2017:IJFOPBPIJU6JQWHAZEWANBHPH2

not attested not anchored not stored refs pending

Meta-Gratings: Beyond the Limits of Graded Metasurfaces for Wavefront Control

Andrea Alu, Dimitrios L. Sounas, Younes Ra'di

arxiv:1705.03879 v1 · 2017-05-10 · physics.app-ph · 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{IJFOPBPIJU6JQWHAZEWANBHPH2}

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	2026-05-18T00:38:02.712436Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

424ae785e84d3c9858e0c92c0684ef3ea365a0357f1342b93ddd5738105dc2ee

Aliases

arxiv: 1705.03879 · arxiv_version: 1705.03879v1 · doi: 10.48550/arxiv.1705.03879 · pith_short_12: IJFOPBPIJU6J · pith_short_16: IJFOPBPIJU6JQWHA · pith_short_8: IJFOPBPI

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/IJFOPBPIJU6JQWHAZEWANBHPH2 \
  | 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: 424ae785e84d3c9858e0c92c0684ef3ea365a0357f1342b93ddd5738105dc2ee

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "299f507f60f7a591630f14e0110808ce97024274ae99fe58607ef8d044e81d5b",
    "cross_cats_sorted": [
      "physics.optics"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.app-ph",
    "submitted_at": "2017-05-10T01:42:10Z",
    "title_canon_sha256": "c4aa7b166caf792c28fadd3ea3e676c09888d4baf99d38abaf88f1eadc6d35d8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.03879",
    "kind": "arxiv",
    "version": 1
  }
}