Pith Number

pith:KK3PWG7B

pith:2013:KK3PWG7BBUENJGIK2U6CTH3W74

not attested not anchored not stored refs pending

Analysis of the trajectory of a sphere moving through a geometric constriction

German Drazer, Joelle Frechette, Mingxiang Luo, Sumedh R. Risbud

arxiv:1304.6706 v3 · 2013-04-24 · 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{KK3PWG7BBUENJGIK2U6CTH3W74}

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	2026-05-18T03:20:34.960215Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

52b6fb1be10d08d4990ad53c299f76ff119a9bbc353d36627333148a984ba4ad

Aliases

arxiv: 1304.6706 · arxiv_version: 1304.6706v3 · doi: 10.48550/arxiv.1304.6706 · pith_short_12: KK3PWG7BBUEN · pith_short_16: KK3PWG7BBUENJGIK · pith_short_8: KK3PWG7B

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/KK3PWG7BBUENJGIK2U6CTH3W74 \
  | 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: 52b6fb1be10d08d4990ad53c299f76ff119a9bbc353d36627333148a984ba4ad

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4456d4b60ce4989db8dd13b1a409b829e4e3e8f5b0b41f54c4d20b33774f734c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.flu-dyn",
    "submitted_at": "2013-04-24T19:39:59Z",
    "title_canon_sha256": "a29617fcec6552ee5502ffec92a0a6f42fe1b61978e0a7dd24213b87d1e64116"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1304.6706",
    "kind": "arxiv",
    "version": 3
  }
}