Pith Number

pith:HIWA6JAK

pith:2026:HIWA6JAK4HKLLLN4U7JHP3G7YO

not attested not anchored not stored refs pending

Toward Parking Spot Occupancy Recognition: A Self-Supervised Approach

Luan Marko Kujavski, Paulo Lisboa de Almeida, Rayson Laroca

arxiv:2606.20886 v1 · 2026-06-18 · 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{HIWA6JAK4HKLLLN4U7JHP3G7YO}

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	2026-06-23T00:12:01.733623Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3a2c0f240ae1d4b5adbca7d277ecdfc3a4c9352f24d0a40662f3057891d1ef22

Aliases

arxiv: 2606.20886 · arxiv_version: 2606.20886v1 · doi: 10.48550/arxiv.2606.20886 · pith_short_12: HIWA6JAK4HKL · pith_short_16: HIWA6JAK4HKLLLN4 · pith_short_8: HIWA6JAK

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/HIWA6JAK4HKLLLN4U7JHP3G7YO \
  | 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: 3a2c0f240ae1d4b5adbca7d277ecdfc3a4c9352f24d0a40662f3057891d1ef22

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c5bc967da977ea68b9b9e46793ebb00ae63ced5f1422fff239b67d826a34b541",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2026-06-18T19:27:18Z",
    "title_canon_sha256": "c9ec80a7074713ac05408bcb3f5f9ed4eaa6221565fb2be56fbd7b899ca05208"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.20886",
    "kind": "arxiv",
    "version": 1
  }
}