Pith Number

pith:VLTK34JN

pith:2021:VLTK34JNDSBPEQFBZ3XSSVC2KW

not attested not anchored not stored refs pending

Deep Learning-based Online Alternative Product Recommendations at Scale

Khalifeh Al Jadda, Mingming Guo, Nian Yan, Rebecca West, San He Wu, Unaiza Ahsan, Xiquan Cui

arxiv:2104.07572 v1 · 2021-04-15 · 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{VLTK34JNDSBPEQFBZ3XSSVC2KW}

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	2026-07-05T02:32:29.652732Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aae6adf12d1c82f240a1ceef29545a5598d89a05b985889cf4f49ff30ac8f2e4

Aliases

arxiv: 2104.07572 · arxiv_version: 2104.07572v1 · doi: 10.48550/arxiv.2104.07572 · pith_short_12: VLTK34JNDSBP · pith_short_16: VLTK34JNDSBPEQFB · pith_short_8: VLTK34JN

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/VLTK34JNDSBPEQFBZ3XSSVC2KW \
  | 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: aae6adf12d1c82f240a1ceef29545a5598d89a05b985889cf4f49ff30ac8f2e4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7ca6f67f3fe78ea1febc6a1a7832f5e9bfaf16c74e894c57fa93599becc6899c",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2021-04-15T16:27:45Z",
    "title_canon_sha256": "99f52ce90b8a3a97f32cb94d2b9a8d10fac9c1562de276f91ddee4c9f8b721f1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.07572",
    "kind": "arxiv",
    "version": 1
  }
}