Pith Number

pith:P3P7AQPA

pith:2019:P3P7AQPALM7CB7MQOKDLVGQGQT

not attested not anchored not stored refs pending

Joint Activity Recognition and Indoor Localization with WiFi Fingerprints

Fei Wang, Jianwei Feng, Jinsong Han, Shiyuan Zhang, Xiaobin Zhang, Yinliang Zhao

arxiv:1904.04964 v2 · 2019-04-10 · cs.HC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{P3P7AQPALM7CB7MQOKDLVGQGQT}

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	2026-05-17T23:40:10.976984Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7edff041e05b3e20fd907286ba9a0684f50c390e53e2f1284d3adbca24cdcb53

Aliases

arxiv: 1904.04964 · arxiv_version: 1904.04964v2 · doi: 10.48550/arxiv.1904.04964 · pith_short_12: P3P7AQPALM7C · pith_short_16: P3P7AQPALM7CB7MQ · pith_short_8: P3P7AQPA

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/P3P7AQPALM7CB7MQOKDLVGQGQT \
  | 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: 7edff041e05b3e20fd907286ba9a0684f50c390e53e2f1284d3adbca24cdcb53

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e081d4b67c837401a777702ecead2fa8400a396ca31c8a265f615ae16016b3fc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.HC",
    "submitted_at": "2019-04-10T01:22:06Z",
    "title_canon_sha256": "ac4c3cd4e2db8e47e6d7cef0e4bf01a1f5542509bf8ed7fa7b70cb24d215cccb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.04964",
    "kind": "arxiv",
    "version": 2
  }
}