Pith Number

pith:F4U2AR4S

pith:2017:F4U2AR4S7LPRU5CDIHH4Q4WPNU

not attested not anchored not stored refs pending

Minimizing Supervision for Free-space Segmentation

David J. Crandall, Satoshi Tsutsui, Shunta Saito, Tommi Kerola

arxiv:1711.05998 v3 · 2017-11-16 · 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{F4U2AR4S7LPRU5CDIHH4Q4WPNU}

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	2026-05-17T23:58:48.481588Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2f29a04792fadf1a744341cfc872cf6d2905bfcc14be17641869c778e234d33e

Aliases

arxiv: 1711.05998 · arxiv_version: 1711.05998v3 · doi: 10.48550/arxiv.1711.05998 · pith_short_12: F4U2AR4S7LPR · pith_short_16: F4U2AR4S7LPRU5CD · pith_short_8: F4U2AR4S

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/F4U2AR4S7LPRU5CDIHH4Q4WPNU \
  | 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: 2f29a04792fadf1a744341cfc872cf6d2905bfcc14be17641869c778e234d33e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a43e230d4aaf975d2e6941451229c695faede7cf99165af84d243287c0fd6406",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2017-11-16T09:24:15Z",
    "title_canon_sha256": "e04b3a4257d4a65e8536f9b7c725b64edecd270d886642737f612e19d4a6f0ee"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.05998",
    "kind": "arxiv",
    "version": 3
  }
}