Pith Number

pith:43KUYBAU

pith:2013:43KUYBAU3XZNYSXGSZOZ3PU3CA

not attested not anchored not stored refs pending

Use of the Basset coefficient in the calculation of the velocity of a spheroid slowing down in a viscous incompressible fluid after a sudden impulse

B. U. Felderhof

arxiv:1309.3659 v1 · 2013-09-14 · 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{43KUYBAU3XZNYSXGSZOZ3PU3CA}

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	2026-05-18T03:13:20.807808Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e6d54c0414ddf2dc4ae6965d9dbe9b1004bd341af6e59769617ae141de98613c

Aliases

arxiv: 1309.3659 · arxiv_version: 1309.3659v1 · doi: 10.48550/arxiv.1309.3659 · pith_short_12: 43KUYBAU3XZN · pith_short_16: 43KUYBAU3XZNYSXG · pith_short_8: 43KUYBAU

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/43KUYBAU3XZNYSXGSZOZ3PU3CA \
  | 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: e6d54c0414ddf2dc4ae6965d9dbe9b1004bd341af6e59769617ae141de98613c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "153550df1b3dcda30a4639b32ddb5ddf1d91de82721cbcbcf27f2ea8c5152642",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2013-09-14T12:50:32Z",
    "title_canon_sha256": "c50d42940a8ea4ac01568456eb6f37f9a9110433c4382147662338e50d1798c6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.3659",
    "kind": "arxiv",
    "version": 1
  }
}