Pith Number

pith:QCNCY2FE

pith:2018:QCNCY2FEOUDINU2QFPAI4J5T2X

not attested not anchored not stored refs pending

Effect of fluid inertia on swimming of a sphere in a viscous incompressible fluid

B. U. Felderhof, R. B. Jones

arxiv:1803.02104 v2 · 2018-03-06 · physics.flu-dyn

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QCNCY2FEOUDINU2QFPAI4J5T2X}

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	2026-05-17T23:53:31.518630Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

809a2c68a4750686d3502bc08e27b3d5feb096550cdbf1bc5b095df694b28126

Aliases

arxiv: 1803.02104 · arxiv_version: 1803.02104v2 · doi: 10.48550/arxiv.1803.02104 · pith_short_12: QCNCY2FEOUDI · pith_short_16: QCNCY2FEOUDINU2Q · pith_short_8: QCNCY2FE

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/QCNCY2FEOUDINU2QFPAI4J5T2X \
  | 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: 809a2c68a4750686d3502bc08e27b3d5feb096550cdbf1bc5b095df694b28126

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ecb6d61e250d8307fc443faea9a19f8003b483ae541356de404fe05733836a9a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2018-03-06T10:50:53Z",
    "title_canon_sha256": "97aee44275dfb90b71b68b37df205b71c7e36cb11850f3b7308d2d4ac71c28dc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1803.02104",
    "kind": "arxiv",
    "version": 2
  }
}