Pith Number

pith:Z67GWIR4

pith:2025:Z67GWIR4PLYWUU62US64KGVSX3

not attested not anchored not stored refs pending

WiCAL: Accurate Wi-Fi-Based 3D Localization Enabled by Collaborative Antenna Arrays

Fuhai Wang, Robert Caiming Qiu, Rujing Xiong, Tiebin Mi, Zhe Li

arxiv:2505.21408 v1 · 2025-05-27 · eess.SY · cs.SY · 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{Z67GWIR4PLYWUU62US64KGVSX3}

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	2026-07-05T11:10:41.542158Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cfbe6b223c7af16a53daa4bdc51ab2bee6dbb988e27fd0ddc80d67b19417d0da

Aliases

arxiv: 2505.21408 · arxiv_version: 2505.21408v1 · doi: 10.48550/arxiv.2505.21408 · pith_short_12: Z67GWIR4PLYW · pith_short_16: Z67GWIR4PLYWUU62 · pith_short_8: Z67GWIR4

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/Z67GWIR4PLYWUU62US64KGVSX3 \
  | 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: cfbe6b223c7af16a53daa4bdc51ab2bee6dbb988e27fd0ddc80d67b19417d0da

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d69ee6726232859c3d9cdfd12140f7da3a1a9db653a948ee0d15335a0f89ba6e",
    "cross_cats_sorted": [
      "cs.SY",
      "eess.SP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SY",
    "submitted_at": "2025-05-27T16:33:00Z",
    "title_canon_sha256": "9e1f404f6fa50339eac0cd12b4f4caeaaa520663063e2a6234e565226ce2c09c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2505.21408",
    "kind": "arxiv",
    "version": 1
  }
}