Pith Number

pith:WIORY2PF

pith:2025:WIORY2PF4CN2KRMJJHIEAEB6FW

not attested not anchored not stored refs pending

Know Me by My Pulse: Toward Practical Continuous Authentication on Wearable Devices via Wrist-Worn PPG

Chongzhou Fang, Ehsan Kourkchi, Houman Homayoun, Ning Miao, Ruijie Fang, Ruoyu Zhang, Setareh Rafatirad, Wei Shao, Zequan Liang

arxiv:2508.13690 v1 · 2025-08-19 · cs.CR · 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{WIORY2PF4CN2KRMJJHIEAEB6FW}

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.

Cited by

1 paper in Pith

Lightweight Cross-Device Sleep Tracking on the WeBe Wearable Platform

Receipt and verification

First computed	2026-07-05T11:55:52.378538Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b21d1c69e5e09ba5458949d040103e2d83e3649d97438b2770e6c7fcb1690109

Aliases

arxiv: 2508.13690 · arxiv_version: 2508.13690v1 · doi: 10.48550/arxiv.2508.13690 · pith_short_12: WIORY2PF4CN2 · pith_short_16: WIORY2PF4CN2KRMJ · pith_short_8: WIORY2PF

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/WIORY2PF4CN2KRMJJHIEAEB6FW \
  | 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: b21d1c69e5e09ba5458949d040103e2d83e3649d97438b2770e6c7fcb1690109

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "789d944c59037fbbd5897f3352cbd3a6813963a7d412f3fcef8aa8e81aeab528",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2025-08-19T09:46:01Z",
    "title_canon_sha256": "f57d5cdb5a27e5dd22d9c7b1bad416b9212785c443801529e2e59703d617370f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2508.13690",
    "kind": "arxiv",
    "version": 1
  }
}