Pith Number

pith:QPDKGECU

pith:2017:QPDKGECUGUQ5WBZ3N7H62YTYRH

not attested not anchored not stored refs pending

Adaptive kNN using Expected Accuracy for Classification of Geo-Spatial Data

Andreas Hotho, Gerd Stumme, Juergen Mueller, Mark Kibanov, Martin Atzmueller, Martin Becker

arxiv:1801.01453 v1 · 2017-12-14 · cs.CV · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{QPDKGECUGUQ5WBZ3N7H62YTYRH}

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	2026-05-18T00:26:42.072120Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83c6a310543521db073b6fcfed627889d7e1ca5ded3ecffa66257224e8cc51ba

Aliases

arxiv: 1801.01453 · arxiv_version: 1801.01453v1 · doi: 10.48550/arxiv.1801.01453 · pith_short_12: QPDKGECUGUQ5 · pith_short_16: QPDKGECUGUQ5WBZ3 · pith_short_8: QPDKGECU

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/QPDKGECUGUQ5WBZ3N7H62YTYRH \
  | 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: 83c6a310543521db073b6fcfed627889d7e1ca5ded3ecffa66257224e8cc51ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fe8e80f0039c26548231ec1559a72b2251c02298c56614866237436f5ca40899",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2017-12-14T14:09:06Z",
    "title_canon_sha256": "5bbf0f39dda49bb14f17e63d251cec872d3071be850fbc9c81af8bed5ab92103"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.01453",
    "kind": "arxiv",
    "version": 1
  }
}