Pith Number

pith:RZBXELOW

pith:2026:RZBXELOWGULFJB7HMTSK4QQM3L

not attested not anchored not stored refs pending

SpO$_2$ Predictor-Guided Stage-Wise Time-Frequency Reconstruction of Low-Quality Dual-Wavelength PPG for Oxygen Saturation Estimation

Ehsan Kourkchi, Elahe Hosseini, Houman Homayoun, Mahdi Pirayesh Shirazi Nejad, Ning Miao, Setareh Rafatirad, Wei Shao, Zequan Liang

arxiv:2607.07996 v1 · 2026-07-09 · eess.SP · cs.AI · 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{RZBXELOWGULFJB7HMTSK4QQM3L}

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	2026-07-10T00:19:06.993567Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8e43722dd635165487e764e4ae420cdada49d5ced6757e7d203e45d14e20f225

Aliases

arxiv: 2607.07996 · arxiv_version: 2607.07996v1 · doi: 10.48550/arxiv.2607.07996 · pith_short_12: RZBXELOWGULF · pith_short_16: RZBXELOWGULFJB7H · pith_short_8: RZBXELOW

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/RZBXELOWGULFJB7HMTSK4QQM3L \
  | 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: 8e43722dd635165487e764e4ae420cdada49d5ced6757e7d203e45d14e20f225

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cdfaff39659a54ff94b3df56a9e2ad707a7594d04e069163550ee17942724a69",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2026-07-09T00:00:42Z",
    "title_canon_sha256": "c56615f75a0a245a19421f763ab073525ac83df36f999809d1e935e6a4d9c92e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.07996",
    "kind": "arxiv",
    "version": 1
  }
}