Pith Number

pith:WLZDCAOL

pith:2017:WLZDCAOLFK5NJPAMT4PIDPOQEA

not attested not anchored not stored refs pending

Measure of the Heart: Santorio Santorio and the Pulsilogium

Daniel Vuillermin, Richard de Grijs

arxiv:1702.05211 v1 · 2017-02-17 · physics.hist-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WLZDCAOLFK5NJPAMT4PIDPOQEA}

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	2026-05-18T00:50:34.473164Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b2f23101cb2abad4bc0c9f1e81bdd020210cfdcb708ba7ab1ac4f8e1555d6c29

Aliases

arxiv: 1702.05211 · arxiv_version: 1702.05211v1 · doi: 10.48550/arxiv.1702.05211 · pith_short_12: WLZDCAOLFK5N · pith_short_16: WLZDCAOLFK5NJPAM · pith_short_8: WLZDCAOL

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/WLZDCAOLFK5NJPAMT4PIDPOQEA \
  | 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: b2f23101cb2abad4bc0c9f1e81bdd020210cfdcb708ba7ab1ac4f8e1555d6c29

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "78f8a856c4b6487e8a83b95d82d9c994a5873a25865f64bb39463714a7b5a915",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.hist-ph",
    "submitted_at": "2017-02-17T03:09:54Z",
    "title_canon_sha256": "8fe1055e890fd0e2abbe57006041ef967fe405b151e4ca237705b2089b0c3250"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.05211",
    "kind": "arxiv",
    "version": 1
  }
}