Pith Number

pith:4PVNQQCD

pith:2018:4PVNQQCDGFLEDWEN2WTVBQV7ET

not attested not anchored not stored refs pending

Arterial Blood Pressure Feature Estimation Using Photoplethysmography

Armin Soltan Zadi, Donald E. Watenpaugh, Khosrow Behbehani, Raichel Alex, Rong Zhang

arxiv:1811.06039 v1 · 2018-11-14 · eess.SP · cs.CE

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4PVNQQCDGFLEDWEN2WTVBQV7ET}

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	2026-05-18T00:00:38.812529Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e3ead84043315641d88dd5a750c2bf24cb811680df4a8bbe74015c2400f69b2c

Aliases

arxiv: 1811.06039 · arxiv_version: 1811.06039v1 · doi: 10.48550/arxiv.1811.06039 · pith_short_12: 4PVNQQCDGFLE · pith_short_16: 4PVNQQCDGFLEDWEN · pith_short_8: 4PVNQQCD

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/4PVNQQCDGFLEDWEN2WTVBQV7ET \
  | 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: e3ead84043315641d88dd5a750c2bf24cb811680df4a8bbe74015c2400f69b2c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8182d6b6741620e0123e87ce5316742de86eadadfb512d86d5c3f3919f030e75",
    "cross_cats_sorted": [
      "cs.CE"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2018-11-14T20:08:55Z",
    "title_canon_sha256": "0f5c021df563e0da98beeb9f4f9e7ca8106554019d1e56d6884fddd069c9ad83"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.06039",
    "kind": "arxiv",
    "version": 1
  }
}