Pith Number

pith:XMKPC55C

pith:2023:XMKPC55C7F4WUTNV27VLTMV73R

not attested not anchored not stored refs pending

Safe Collaborative Filtering

Naoto Ohsaka, Riku Togashi, Tatsushi Oka, Tetsuro Morimura

arxiv:2306.05292 v2 · 2023-06-08 · cs.IR · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{XMKPC55C7F4WUTNV27VLTMV73R}

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	2026-07-05T07:50:01.900062Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bb14f177a2f9796a4db5d7eab9b2bfdc496329122a67684ddbbdd44be7a1e9c3

Aliases

arxiv: 2306.05292 · arxiv_version: 2306.05292v2 · doi: 10.48550/arxiv.2306.05292 · pith_short_12: XMKPC55C7F4W · pith_short_16: XMKPC55C7F4WUTNV · pith_short_8: XMKPC55C

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/XMKPC55C7F4WUTNV27VLTMV73R \
  | 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: bb14f177a2f9796a4db5d7eab9b2bfdc496329122a67684ddbbdd44be7a1e9c3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f377510f1200c480996b3504c5d9fc8a5e9b7001430a8051859050e24fd28d3e",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2023-06-08T15:36:02Z",
    "title_canon_sha256": "29c59e860950b10a480c5bb0d5c5abfe72c3d168ad8c87b8f0793f1afd279be2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2306.05292",
    "kind": "arxiv",
    "version": 2
  }
}