Pith Number

pith:3SDQARDV

pith:2024:3SDQARDVTX2BSSWNYMRNIX72LH

not attested not anchored not stored refs pending

A Survey of Retrieval Algorithms in Ad and Content Recommendation Systems

Fang Liu, Yu Zhao

arxiv:2407.01712 v2 · 2024-06-21 · 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{3SDQARDVTX2BSSWNYMRNIX72LH}

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	2026-07-05T08:45:52.206274Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

dc870044759df4194acdc322d45ffa59f251534658234b95cc38430bcb04fefa

Aliases

arxiv: 2407.01712 · arxiv_version: 2407.01712v2 · doi: 10.48550/arxiv.2407.01712 · pith_short_12: 3SDQARDVTX2B · pith_short_16: 3SDQARDVTX2BSSWN · pith_short_8: 3SDQARDV

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/3SDQARDVTX2BSSWNYMRNIX72LH \
  | 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: dc870044759df4194acdc322d45ffa59f251534658234b95cc38430bcb04fefa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f546d8c91943aa3ad26b4d5dbd6ccaf6b5b4b9c10425c5eac2334ec2cc59cdce",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2024-06-21T02:31:03Z",
    "title_canon_sha256": "a63587fd0c2ca6fb7afd301134ea10b17d666cb7c02c4b37a854aeea69f66859"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2407.01712",
    "kind": "arxiv",
    "version": 2
  }
}