Pith Number

pith:WUHRCUDH

pith:2019:WUHRCUDHYYX2K2PU3JRD3C77CV

not attested not anchored not stored refs pending

A Multi-level Clustering Approach for Anonymizing Large-Scale Physical Activity Data

Gunes Koru (1) ((1) University of Maryland Baltimore County), Pooja Parameshwarappa (1), Zhiyuan Chen (1)

arxiv:1908.07976 v1 · 2019-08-21 · cs.CR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WUHRCUDHYYX2K2PU3JRD3C77CV}

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	2026-07-04T23:59:02.945816Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b50f115067c62fa569f4da623d8bff1559d45eab8f8164d99eecdea6b36997af

Aliases

arxiv: 1908.07976 · arxiv_version: 1908.07976v1 · doi: 10.48550/arxiv.1908.07976 · pith_short_12: WUHRCUDHYYX2 · pith_short_16: WUHRCUDHYYX2K2PU · pith_short_8: WUHRCUDH

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/WUHRCUDHYYX2K2PU3JRD3C77CV \
  | 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: b50f115067c62fa569f4da623d8bff1559d45eab8f8164d99eecdea6b36997af

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "be172e29b93c94aacabfa38f76c251033299621ca6f10e99baec8ab49957bf11",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2019-08-21T16:28:11Z",
    "title_canon_sha256": "e3354e32541fa3cc136be21a2dcccd788fec248d3a648ba2e5c29e8607bea3f5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.07976",
    "kind": "arxiv",
    "version": 1
  }
}