Pith Number

pith:ASG5W7CT

pith:2015:ASG5W7CTMVEWN77JQM5UCWMZGT

not attested not anchored not stored refs pending

Factorizing LambdaMART for cold start recommendations

Alexandros Kalousis, Jun Wang, Phong Nguyen

arxiv:1511.01282 v1 · 2015-11-04 · cs.LG · 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{ASG5W7CTMVEWN77JQM5UCWMZGT}

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	2026-05-18T01:27:47.579486Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

048ddb7c53654966ffe9833b41599934feeb3499774e019100c46470340b51de

Aliases

arxiv: 1511.01282 · arxiv_version: 1511.01282v1 · doi: 10.48550/arxiv.1511.01282 · pith_short_12: ASG5W7CTMVEW · pith_short_16: ASG5W7CTMVEWN77J · pith_short_8: ASG5W7CT

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/ASG5W7CTMVEWN77JQM5UCWMZGT \
  | 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: 048ddb7c53654966ffe9833b41599934feeb3499774e019100c46470340b51de

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "778f2f163ef60393a9066b2c583245d5630057ee3b72926b5877bc069992d5a6",
    "cross_cats_sorted": [
      "cs.IR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2015-11-04T10:49:15Z",
    "title_canon_sha256": "4159b11eff951a026bfc02802266575ceff5da7c5bde0b83d92a9608cc0a11c8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.01282",
    "kind": "arxiv",
    "version": 1
  }
}