Pith Number

pith:YNDEPDZL

pith:2021:YNDEPDZLWG7FOZ56GENPMC7CQK

not attested not anchored not stored refs pending

Smartphone Camera Oximetry in an Induced Hypoxemia Study

Edward Wang, Eric C. Larson, Jason S. Hoffman, Matthew J. Thompson, Shwetak N. Patel, Varun Viswanath, Xinyi Ding

arxiv:2104.00038 v1 · 2021-03-31 · cs.LG · 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{YNDEPDZLWG7FOZ56GENPMC7CQK}

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	2026-07-05T02:28:23.221544Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c346478f2bb1be5767be311af60be2829ccd35a821d73a7270ff3edde04132a8

Aliases

arxiv: 2104.00038 · arxiv_version: 2104.00038v1 · doi: 10.48550/arxiv.2104.00038 · pith_short_12: YNDEPDZLWG7F · pith_short_16: YNDEPDZLWG7FOZ56 · pith_short_8: YNDEPDZL

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/YNDEPDZLWG7FOZ56GENPMC7CQK \
  | 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: c346478f2bb1be5767be311af60be2829ccd35a821d73a7270ff3edde04132a8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a21a81bb2e996fbef71ad22381bf851edaab6deda9710243245c3cc438adc556",
    "cross_cats_sorted": [
      "cs.HC"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2021-03-31T18:10:10Z",
    "title_canon_sha256": "3369f691cb22e5a39d25ed02b3023d6cddaf3101edd7973b8ed929864ef2689b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.00038",
    "kind": "arxiv",
    "version": 1
  }
}