Pith Number

pith:U4JVZZCN

pith:2019:U4JVZZCNT3WAYSOUKQ22DYCMHI

not attested not anchored not stored refs pending

Neural Hybrid Recommender: Recommendation needs collaboration

\c{S}ule G\"und\"uz \"O\u{g}\"ud\"uc\"u, Ezgi Y{\i}ld{\i}r{\i}m, Payam Azad

arxiv:1909.13330 v1 · 2019-09-29 · 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{U4JVZZCNT3WAYSOUKQ22DYCMHI}

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	2026-07-05T00:08:09.353997Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a7135ce44d9eec0c49d45435a1e04c3a07eac8deae7feb6ad3bf0cfaeb3fa61c

Aliases

arxiv: 1909.13330 · arxiv_version: 1909.13330v1 · doi: 10.48550/arxiv.1909.13330 · pith_short_12: U4JVZZCNT3WA · pith_short_16: U4JVZZCNT3WAYSOU · pith_short_8: U4JVZZCN

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/U4JVZZCNT3WAYSOUKQ22DYCMHI \
  | 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: a7135ce44d9eec0c49d45435a1e04c3a07eac8deae7feb6ad3bf0cfaeb3fa61c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2e167c05eca09405118ea9bbe577f011b93e7930a8ff5432d2ff2b2d5ee2f25a",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2019-09-29T17:51:52Z",
    "title_canon_sha256": "0f6008bdd0ffbfbe2a78e3a750f13cedcd43db61e0d0da21ace74c49d7feb77a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.13330",
    "kind": "arxiv",
    "version": 1
  }
}