Pith Number

pith:7L3GURCL

pith:2022:7L3GURCLOEWZ3LXVBRPM4SUUNW

not attested not anchored not stored refs pending

SPR:Supervised Personalized Ranking Based on Prior Knowledge for Recommendation

Chun Yang, Shicai Fan

arxiv:2207.03197 v1 · 2022-07-07 · cs.IR · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7L3GURCLOEWZ3LXVBRPM4SUUNW}

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	2026-07-05T04:38:19.720291Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

faf66a444b712d9daef50c5ece4a946da4106428c2261bce13305f55abb8f575

Aliases

arxiv: 2207.03197 · arxiv_version: 2207.03197v1 · doi: 10.48550/arxiv.2207.03197 · pith_short_12: 7L3GURCLOEWZ · pith_short_16: 7L3GURCLOEWZ3LXV · pith_short_8: 7L3GURCL

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/7L3GURCLOEWZ3LXVBRPM4SUUNW \
  | 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: faf66a444b712d9daef50c5ece4a946da4106428c2261bce13305f55abb8f575

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ae9f0ce0cc6f35f0c6e838250b78d606fee2477ee9e4644be438970931a2605e",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2022-07-07T10:00:54Z",
    "title_canon_sha256": "01c4c6e2d448ece8ddeb63b4bc0761691f2af8e3aab5dc0a1b260086f155cb93"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2207.03197",
    "kind": "arxiv",
    "version": 1
  }
}