Pith Number

pith:5Z3MQV4M

pith:2012:5Z3MQV4MWYRYA2KP6QRYP4COSF

not attested not anchored not stored refs pending

A Graphical Model Formulation of Collaborative Filtering Neighbourhood Methods with Fast Maximum Entropy Training

Aaron Defazio (ANU), Australian National University), Tiberio Caetano (NICTA

arxiv:1206.4622 v1 · 2012-06-18 · cs.LG · cs.IR · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5Z3MQV4MWYRYA2KP6QRYP4COSF}

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	2026-05-18T03:53:04.558832Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ee76c8578cb62380694ff42387f04e9153059d10fe9a98b1896eb263807fa756

Aliases

arxiv: 1206.4622 · arxiv_version: 1206.4622v1 · doi: 10.48550/arxiv.1206.4622 · pith_short_12: 5Z3MQV4MWYRY · pith_short_16: 5Z3MQV4MWYRYA2KP · pith_short_8: 5Z3MQV4M

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/5Z3MQV4MWYRYA2KP6QRYP4COSF \
  | 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: ee76c8578cb62380694ff42387f04e9153059d10fe9a98b1896eb263807fa756

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3cc941484539ed0826cac5001cee112a4a7b0f4b472ddc80905db61e1023338d",
    "cross_cats_sorted": [
      "cs.IR",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2012-06-18T15:05:52Z",
    "title_canon_sha256": "e4b5f6f2893c0da00e2efe2d62d35319ea2a7f2f25c9c9683a9169444c40bd45"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.4622",
    "kind": "arxiv",
    "version": 1
  }
}