Pith Number

pith:3WYMZWIU

pith:2011:3WYMZWIU47I6ZSMC7RJ2LZHSIC

not attested not anchored not stored refs pending

Collaborative Filtering without Explicit Feedbacks for Digital Recorders

Alessandro Basso, Andr\'e Panisson, Giancarlo Ruffo, Marco Milanesio

arxiv:1101.3341 v1 · 2011-01-17 · cs.IR · cs.HC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3WYMZWIU47I6ZSMC7RJ2LZHSIC}

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	2026-05-18T02:22:51.879919Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ddb0ccd914e7d1ecc982fc53a5e4f2408a7bb973576e1705a7f0f32a3d9a0e2e

Aliases

arxiv: 1101.3341 · arxiv_version: 1101.3341v1 · doi: 10.48550/arxiv.1101.3341 · pith_short_12: 3WYMZWIU47I6 · pith_short_16: 3WYMZWIU47I6ZSMC · pith_short_8: 3WYMZWIU

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/3WYMZWIU47I6ZSMC7RJ2LZHSIC \
  | 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: ddb0ccd914e7d1ecc982fc53a5e4f2408a7bb973576e1705a7f0f32a3d9a0e2e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "592c26a3f52ee22add51ca78ee4fe2f87887876010231a95f86263476e87f738",
    "cross_cats_sorted": [
      "cs.HC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2011-01-17T22:01:44Z",
    "title_canon_sha256": "64fecc9bbaf02abc17afe9aa198b4889bf756033cc711dc8b39b95df2d897ee0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1101.3341",
    "kind": "arxiv",
    "version": 1
  }
}