Pith Number

pith:7472PIGQ

pith:2021:7472PIGQIXHZWXLZTXSNOOHY3P

not attested not anchored not stored refs pending

Incremental Learning for Personalized Recommender Systems

Haichao Wei, Huiji Gao, Jun Shi, Yunbo Ouyang

arxiv:2108.13299 v1 · 2021-08-13 · 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{7472PIGQIXHZWXLZTXSNOOHY3P}

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	2026-07-05T03:09:52.518992Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ff3fa7a0d045cf9b5d799de4d738f8dbf3800596e8e2e88ed4a035b93db7541d

Aliases

arxiv: 2108.13299 · arxiv_version: 2108.13299v1 · doi: 10.48550/arxiv.2108.13299 · pith_short_12: 7472PIGQIXHZ · pith_short_16: 7472PIGQIXHZWXLZ · pith_short_8: 7472PIGQ

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/7472PIGQIXHZWXLZTXSNOOHY3P \
  | 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: ff3fa7a0d045cf9b5d799de4d738f8dbf3800596e8e2e88ed4a035b93db7541d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fba56c2dad64c8fdb08c1b3a11541bf2a13e38a8a3bd23c7a71575517d461594",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2021-08-13T04:21:21Z",
    "title_canon_sha256": "51b88d6bfa17e8bee760012d04b2683811f0600772837b1fd2cd85dd289c8f98"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2108.13299",
    "kind": "arxiv",
    "version": 1
  }
}