Pith Number

pith:UGN6YMFU

pith:2018:UGN6YMFUVF4QIHSF3CB6RQ6OJ6

not attested not anchored not stored refs pending

Plan in 2D, execute in 3D: An augmented reality solution for cup placement in total hip arthroplasty

Alex Johnson, Bernhard Fuerst, Clayton P. Alexander, Giacomo Taylor, Greg Osgood, Harpal Khanuja, Javad Fotouhi, Mathias Unberath, Mehran Armand, Nassir Navab, Russell H. Taylor, Sing Chun Lee

arxiv:1801.01557 v1 · 2018-01-04 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UGN6YMFUVF4QIHSF3CB6RQ6OJ6}

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	2026-05-18T00:26:41.827835Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a19bec30b4a979041e45d883e8c3ce4f8e7e1c8e2590d4f5444e1290be7aa6e4

Aliases

arxiv: 1801.01557 · arxiv_version: 1801.01557v1 · doi: 10.48550/arxiv.1801.01557 · pith_short_12: UGN6YMFUVF4Q · pith_short_16: UGN6YMFUVF4QIHSF · pith_short_8: UGN6YMFU

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/UGN6YMFUVF4QIHSF3CB6RQ6OJ6 \
  | 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: a19bec30b4a979041e45d883e8c3ce4f8e7e1c8e2590d4f5444e1290be7aa6e4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "99eb74f3ec110d8ef8e4ee07b3db86b6c6301d440f30e96763092b3df2002610",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2018-01-04T22:00:20Z",
    "title_canon_sha256": "f810d346d1037e15b346826b0c5d235a0ef433d280d3564c1119cdac2c18bf42"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.01557",
    "kind": "arxiv",
    "version": 1
  }
}