Pith Number

pith:M5HKU44Y

pith:2021:M5HKU44YYIKDKX56CAU6PW7ZUF

not attested not anchored not stored refs pending

Systolic blood pressure estimation using ECG and PPG in patients undergoing surgery

Erik Bresch, Gerrit J. Noordergraaf, Igor Paulussen, Jens Muehlsteff, Lars Schmitt, Rick Bezemer, Ronald M. Aarts, Shaoxiong Sun, Xi Long

arxiv:2112.12853 v3 · 2021-12-23 · physics.med-ph · q-bio.QM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{M5HKU44YYIKDKX56CAU6PW7ZUF}

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	2026-07-05T04:49:43.463212Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

674eaa7398c214355fbe1029e7dbf9a159ded130ca7d68bd8ea78f00c0607a4b

Aliases

arxiv: 2112.12853 · arxiv_version: 2112.12853v3 · doi: 10.48550/arxiv.2112.12853 · pith_short_12: M5HKU44YYIKD · pith_short_16: M5HKU44YYIKDKX56 · pith_short_8: M5HKU44Y

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/M5HKU44YYIKDKX56CAU6PW7ZUF \
  | 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: 674eaa7398c214355fbe1029e7dbf9a159ded130ca7d68bd8ea78f00c0607a4b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f77cdd1826238831266c50b43511ac381db1367e59c48bf8644617abdd710fbf",
    "cross_cats_sorted": [
      "q-bio.QM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.med-ph",
    "submitted_at": "2021-12-23T21:52:47Z",
    "title_canon_sha256": "50e2dd8c7fbf16a491c0b6e35b0e989041020990971dfa9c6e28d640dd704b95"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.12853",
    "kind": "arxiv",
    "version": 3
  }
}