Pith Number

pith:3CD52DKC

pith:2026:3CD52DKCIZVAV3ALXJUZ37RHQL

not attested not anchored not stored refs pending

AI-Driven Design of Stacked Intelligent Metasurfaces for Software-Defined Radio Applications

Donatella Darsena, Giacinto Gelli, Ivan Iudice

arxiv:2601.20795 v1 · 2026-01-28 · eess.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3CD52DKCIZVAV3ALXJUZ37RHQL}

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	2026-05-26T02:04:03.708381Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d887dd0d42466a0aec0bba699dfe2782eb6c480cb630da0981ca7830236d3f71

Aliases

arxiv: 2601.20795 · arxiv_version: 2601.20795v1 · doi: 10.48550/arxiv.2601.20795 · pith_short_12: 3CD52DKCIZVA · pith_short_16: 3CD52DKCIZVAV3AL · pith_short_8: 3CD52DKC

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/3CD52DKCIZVAV3ALXJUZ37RHQL \
  | 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: d887dd0d42466a0aec0bba699dfe2782eb6c480cb630da0981ca7830236d3f71

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "93b12c6cf8e1fe405c97d0639c99c0fc10d41284e964fa2b63c1984f71904fd9",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2026-01-28T17:36:16Z",
    "title_canon_sha256": "4aaf2dd9d98d884a72ce08218324e6dab3417741399c5131a9e85b8bb5429c28"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2601.20795",
    "kind": "arxiv",
    "version": 1
  }
}