Pith Number

pith:QBT7Q3M4

pith:1999:QBT7Q3M4AYBPI6VLBZDNVOOP6A

not attested not anchored not stored refs pending

Analysis of approximate nearest neighbor searching with clustered point sets

David M. Mount, Songrit Maneewongvatana

arxiv:cs/9901013 v1 · 1999-01-26 · cs.CG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QBT7Q3M4AYBPI6VLBZDNVOOP6A}

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.

Cited by

4 papers in Pith

Automated Erythrocyte Detection and Tracking for Retinal Blood Flow Quantification in Erythrocyte-Mediated Angiography

Excitons in Large Disordered Boron-Nitride Layer using Linear-Scaling Bethe-Salpeter Simulations

SciPy 1.0--Fundamental Algorithms for Scientific Computing in Python

UD-DML: Uniform Design Subsampling for Double Machine Learning over Massive Data

Receipt and verification

First computed	2026-07-04T14:25:09.283135Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8067f86d9c0602f47aab0e46dab9cff01bd2ba8b77753f685c9c15fcecf2d5e9

Aliases

arxiv: cs/9901013 · arxiv_version: cs/9901013v1 · doi: 10.48550/arxiv.cs/9901013 · pith_short_12: QBT7Q3M4AYBP · pith_short_16: QBT7Q3M4AYBPI6VL · pith_short_8: QBT7Q3M4

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/QBT7Q3M4AYBPI6VLBZDNVOOP6A \
  | 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: 8067f86d9c0602f47aab0e46dab9cff01bd2ba8b77753f685c9c15fcecf2d5e9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fbbed17fcd0f286e839eb5270c8c3515290d489d92bed98d37f9c1433b778232",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "cs.CG",
    "submitted_at": "1999-01-26T21:23:37Z",
    "title_canon_sha256": "0af3fb28051d69bcf61d108002f01a46199520139d9cec7e0d0963ffa915215e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cs/9901013",
    "kind": "arxiv",
    "version": 1
  }
}