Pith Number

pith:JKPDTYUE

pith:2024:JKPDTYUE27MNGX67C2GWDTMNUL

not attested not anchored not stored refs pending

Two-Dimensional Direction-of-Arrival Estimation Using Stacked Intelligent Metasurfaces

Chau Yuen, H. Vincent Poor, Jiancheng An, Lajos Hanzo, Marco Di Renzo, M\'erouane Debbah, Yong Liang Guan

arxiv:2402.08224 v1 · 2024-02-13 · cs.IT · eess.SP · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JKPDTYUE27MNGX67C2GWDTMNUL}

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	2026-07-05T07:44:29.393822Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4a9e39e284d7d8d35fdf168d61cd8da2fabbda4567ace5324ed0cf4c10473a50

Aliases

arxiv: 2402.08224 · arxiv_version: 2402.08224v1 · doi: 10.48550/arxiv.2402.08224 · pith_short_12: JKPDTYUE27MN · pith_short_16: JKPDTYUE27MNGX67 · pith_short_8: JKPDTYUE

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/JKPDTYUE27MNGX67C2GWDTMNUL \
  | 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: 4a9e39e284d7d8d35fdf168d61cd8da2fabbda4567ace5324ed0cf4c10473a50

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7fb5b1a7840cf58c8e13277c17d2c1f7be688b257c4e83cea0eb5f4aa3217995",
    "cross_cats_sorted": [
      "eess.SP",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2024-02-13T05:30:35Z",
    "title_canon_sha256": "d96da9bbc8b0c351ec835780ce75b30921d68dca9346e8a98e947330e4328b60"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2402.08224",
    "kind": "arxiv",
    "version": 1
  }
}