Pith Number

pith:QZQZWVCC

pith:2013:QZQZWVCCQKVEVAEKR4MYW7SJ2Z

not attested not anchored not stored refs pending

On the Feature Discovery for App Usage Prediction in Smartphones

Philip S Yu, Shou-Chung Li, Wen-Chih Peng, Zhung-Xun Liao

arxiv:1309.7982 v1 · 2013-09-26 · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QZQZWVCCQKVEVAEKR4MYW7SJ2Z}

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	2026-05-18T03:11:47.642697Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

86619b544282aa4a808a8f198b7e49d64bd4ecd48ad937306fe936010a48fb49

Aliases

arxiv: 1309.7982 · arxiv_version: 1309.7982v1 · doi: 10.48550/arxiv.1309.7982 · pith_short_12: QZQZWVCCQKVE · pith_short_16: QZQZWVCCQKVEVAEK · pith_short_8: QZQZWVCC

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/QZQZWVCCQKVEVAEKR4MYW7SJ2Z \
  | 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: 86619b544282aa4a808a8f198b7e49d64bd4ecd48ad937306fe936010a48fb49

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "349165851a2db1a92bbf8b43083055040766b44f5a7ef80ef5839ae68637e9a8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2013-09-26T14:44:10Z",
    "title_canon_sha256": "35140d58c8ec1488ce3458b0546e7a47b2febe6181171804ea9745e78b163195"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.7982",
    "kind": "arxiv",
    "version": 1
  }
}