Pith Number

pith:34TUCEQQ

pith:2013:34TUCEQQG3FFWV4LZ2V5FKHKXF

not attested not anchored not stored refs pending

Design and Development of a Heart Rate Measuring Device using Fingertip

Md. Abdul Kader, Md. Abu Sayed, M.M.A. Hashem, Rushdi Shams

arxiv:1304.2475 v1 · 2013-04-09 · cs.OH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{34TUCEQQG3FFWV4LZ2V5FKHKXF}

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	2026-05-18T00:58:17.416873Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

df2741121036ca5b578bceabd2a8eab967ec2ebdb17e0a2f14c6b1e2b3c5d2d2

Aliases

arxiv: 1304.2475 · arxiv_version: 1304.2475v1 · doi: 10.48550/arxiv.1304.2475 · pith_short_12: 34TUCEQQG3FF · pith_short_16: 34TUCEQQG3FFWV4L · pith_short_8: 34TUCEQQ

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/34TUCEQQG3FFWV4LZ2V5FKHKXF \
  | 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: df2741121036ca5b578bceabd2a8eab967ec2ebdb17e0a2f14c6b1e2b3c5d2d2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bfaeff1d85ea5edc242c9a9f5891b54d4d827b340c2895f244def904feb393ff",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.OH",
    "submitted_at": "2013-04-09T07:24:14Z",
    "title_canon_sha256": "ace75b74d15a7cb74c7a8e04218a9c3da5871ec82befdb2f056dda19e888c159"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.2475",
    "kind": "arxiv",
    "version": 1
  }
}