Pith Number

pith:UPWO7ZUV

pith:2021:UPWO7ZUVIYAM3UWIAQAIQTTHND

not attested not anchored not stored refs pending

Learning to Learn a Cold-start Sequential Recommender

Changsheng Xu, Jian Yu, Jitao Sang, Xiaowen Huang

arxiv:2110.09083 v1 · 2021-10-18 · cs.IR · cs.AI · 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{UPWO7ZUVIYAM3UWIAQAIQTTHND}

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	2026-07-05T03:23:23.897066Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a3ecefe6954600cdd2c80400884e6768da9c1c77e42ebd181af81fa123e93950

Aliases

arxiv: 2110.09083 · arxiv_version: 2110.09083v1 · doi: 10.48550/arxiv.2110.09083 · pith_short_12: UPWO7ZUVIYAM · pith_short_16: UPWO7ZUVIYAM3UWI · pith_short_8: UPWO7ZUV

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/UPWO7ZUVIYAM3UWIAQAIQTTHND \
  | 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: a3ecefe6954600cdd2c80400884e6768da9c1c77e42ebd181af81fa123e93950

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "1331d8a247071e34ebb6ecdcb17b109df937e894269a53937859f5446d2428e0",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2021-10-18T08:11:24Z",
    "title_canon_sha256": "7ff99efc055c2897e3edcfd66391ac3fa01acc880146710259f9e7d1edec1970"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2110.09083",
    "kind": "arxiv",
    "version": 1
  }
}