Pith Number

pith:WSSDIERT

pith:2019:WSSDIERTJ67SJQFF4VWXCDQOGB

not attested not anchored not stored refs pending

Enhancing the long-term performance of recommender system

An Zeng, Leyang Xue, Peng Zhang

arxiv:1904.00672 v1 · 2019-04-01 · physics.soc-ph · cs.HC · cs.IR · cs.SI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WSSDIERTJ67SJQFF4VWXCDQOGB}

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	2026-05-17T23:41:53.223860Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b4a43412334fbf24c0a5e56d710e0e30776f953cda02b86b07d54be52f717cba

Aliases

arxiv: 1904.00672 · arxiv_version: 1904.00672v1 · doi: 10.48550/arxiv.1904.00672 · pith_short_12: WSSDIERTJ67S · pith_short_16: WSSDIERTJ67SJQFF · pith_short_8: WSSDIERT

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/WSSDIERTJ67SJQFF4VWXCDQOGB \
  | 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: b4a43412334fbf24c0a5e56d710e0e30776f953cda02b86b07d54be52f717cba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c44888d7112d4cc126b09c35feb14bfe55e1628af8317ca728cd656979a4bb54",
    "cross_cats_sorted": [
      "cs.HC",
      "cs.IR",
      "cs.SI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "physics.soc-ph",
    "submitted_at": "2019-04-01T09:55:16Z",
    "title_canon_sha256": "e4ac9f5081524c4b1583fc4bad00fac3832061b93f8d1ff78d44527f6430a2c3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1904.00672",
    "kind": "arxiv",
    "version": 1
  }
}