Pith Number

pith:NCMSPOLF

pith:2009:NCMSPOLF6WRZRWIZSKTZK5U6VD

not attested not anchored not stored refs pending

Motion Segmentation by SCC on the Hopkins 155 Database

G. Chen, G. Lerman

arxiv:0909.1608 v1 · 2009-09-09 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NCMSPOLF6WRZRWIZSKTZK5U6VD}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T03:44:03.008358Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

689927b965f5a398d91992a795769ea8d92c4499dc43acb87e5623edf535aa3a

Aliases

arxiv: 0909.1608 · arxiv_version: 0909.1608v1 · doi: 10.48550/arxiv.0909.1608 · pith_short_12: NCMSPOLF6WRZ · pith_short_16: NCMSPOLF6WRZRWIZ · pith_short_8: NCMSPOLF

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/NCMSPOLF6WRZRWIZSKTZK5U6VD \
  | 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: 689927b965f5a398d91992a795769ea8d92c4499dc43acb87e5623edf535aa3a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ad83310f5b6511dd272c9396fe77d2e255b268ce058f68c93a4308be271c85cd",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2009-09-09T02:12:22Z",
    "title_canon_sha256": "76a61cb5f7be54a54928b2d5f099fb398f8a6e74ed1c17f8b11c416c464c00d3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0909.1608",
    "kind": "arxiv",
    "version": 1
  }
}