Pith Number

pith:6KM63SSG

pith:2021:6KM63SSGAGUXAMU3ZPAAEWIHJY

not attested not anchored not stored refs pending

Metasurfaces 3.0: a New Paradigm for Enabling Smart Electromagnetic Environments

Alessandro Toscano, Alessio Monti, Davide Ramaccia, Filiberto Bilotti, Michela Longhi, Mirko Barbuto, Stefano Vellucci, Zahra Hamzavi-Zarghani

arxiv:2112.02293 v1 · 2021-12-04 · physics.app-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{6KM63SSGAGUXAMU3ZPAAEWIHJY}

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	2026-07-05T07:59:45.920176Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f299edca4601a970329bcbc00259074e281744ecd776e81284ace92861db4a03

Aliases

arxiv: 2112.02293 · arxiv_version: 2112.02293v1 · doi: 10.48550/arxiv.2112.02293 · pith_short_12: 6KM63SSGAGUX · pith_short_16: 6KM63SSGAGUXAMU3 · pith_short_8: 6KM63SSG

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/6KM63SSGAGUXAMU3ZPAAEWIHJY \
  | 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: f299edca4601a970329bcbc00259074e281744ecd776e81284ace92861db4a03

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7a06185f4c7c879e75e009d0786fd27493658763eed45b265856554815401891",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.app-ph",
    "submitted_at": "2021-12-04T09:43:04Z",
    "title_canon_sha256": "de01d7594caa0e8ba9f7aa4f048c849b6071b42c2d314baa1c0972cf38d015da"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.02293",
    "kind": "arxiv",
    "version": 1
  }
}