Pith Number

pith:WB2K2ETF

pith:2010:WB2K2ETFXEM47FIJFUA6OPC52C

not attested not anchored not stored refs pending

Incremental Training of a Detector Using Online Sparse Eigen-decomposition

Chunhua Shen, Jian Zhang, Sakrapee Paisitkriangkrai

arxiv:1005.4118 v1 · 2010-05-22 · 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{WB2K2ETFXEM47FIJFUA6OPC52C}

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	2026-05-18T04:41:36.589158Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b074ad1265b919cf95092d01e73c5dd0bc59dcc5aafeef803e87d3534bc7d2d0

Aliases

arxiv: 1005.4118 · arxiv_version: 1005.4118v1 · doi: 10.48550/arxiv.1005.4118 · pith_short_12: WB2K2ETFXEM4 · pith_short_16: WB2K2ETFXEM47FIJ · pith_short_8: WB2K2ETF

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/WB2K2ETFXEM47FIJFUA6OPC52C \
  | 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: b074ad1265b919cf95092d01e73c5dd0bc59dcc5aafeef803e87d3534bc7d2d0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4d5038039b7dc4d0d4d67b46d23fd678bd3e4682d42499754f9cd5ba0d2e0b9a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2010-05-22T11:05:58Z",
    "title_canon_sha256": "83012f9e4960c5a644b206a8de33e2a63d99f407c680a86cf361c1f8ff33e200"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1005.4118",
    "kind": "arxiv",
    "version": 1
  }
}