Pith Number

pith:ZTLKTCZX

pith:2016:ZTLKTCZX67R6GQLW5YDN3MK6OW

not attested not anchored not stored refs pending

The effect of finger spreading on drag of the hand in human swimming

Dennis H.J. Willemsen, Ernst Jan Grift, GertJan F. van Heijst, Herman J.H. Clercx, Jerry Westerweel, Josje van Houwelingen, Rene Delfos, Rudie P.J. Kunnen, Willem van de Water, Wim Paul Breugem

arxiv:1611.08578 v1 · 2016-11-25 · physics.flu-dyn

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZTLKTCZX67R6GQLW5YDN3MK6OW}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T00:56:38.570416Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ccd6a98b37f7e3e34176ee06ddb15e75a92098b2e068a623eed5b235ea757fb4

Aliases

arxiv: 1611.08578 · arxiv_version: 1611.08578v1 · doi: 10.48550/arxiv.1611.08578 · pith_short_12: ZTLKTCZX67R6 · pith_short_16: ZTLKTCZX67R6GQLW · pith_short_8: ZTLKTCZX

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/ZTLKTCZX67R6GQLW5YDN3MK6OW \
  | 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: ccd6a98b37f7e3e34176ee06ddb15e75a92098b2e068a623eed5b235ea757fb4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e78f6bf872a33ad8cecb25375f95e06f28a6c6ac0fee793f6b4f9fe2b3d4486a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2016-11-25T20:23:53Z",
    "title_canon_sha256": "bec8e01da69bd3159fc451c85000daf874fdeb4a1e300dc526cea750ab05316c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1611.08578",
    "kind": "arxiv",
    "version": 1
  }
}