Pith Number

pith:OZWAN5BP

pith:2012:OZWAN5BPBTS5GDG5BW6NN3NEJC

not attested not anchored not stored refs pending

A two-step Recommendation Algorithm via Iterative Local Least Squares

Chengcheng Yang, Jinhu Liu, Zi-Ke Zhang

arxiv:1206.3320 v1 · 2012-06-14 · cs.IR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OZWAN5BPBTS5GDG5BW6NN3NEJC}

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	2026-05-18T03:53:30.622520Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

766c06f42f0ce5d30cdd0dbcd6eda44883899357c9554948b738b5ae35c51373

Aliases

arxiv: 1206.3320 · arxiv_version: 1206.3320v1 · doi: 10.48550/arxiv.1206.3320 · pith_short_12: OZWAN5BPBTS5 · pith_short_16: OZWAN5BPBTS5GDG5 · pith_short_8: OZWAN5BP

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/OZWAN5BPBTS5GDG5BW6NN3NEJC \
  | 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: 766c06f42f0ce5d30cdd0dbcd6eda44883899357c9554948b738b5ae35c51373

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "817d280c2d9432a057576e73c8b76e3e65c5f6664217cd6526d115ce213fa4ab",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2012-06-14T20:23:24Z",
    "title_canon_sha256": "c3cc25777f0618191fffa940c46b7476a7d392ba447cfff19ea8cd1413351286"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.3320",
    "kind": "arxiv",
    "version": 1
  }
}