Pith Number

pith:2QBTW46Y

pith:2021:2QBTW46YJUTJ5HHWXJUCOKMMHW

not attested not anchored not stored refs pending

Self-supervised Representation Learning for Trip Recommendation

Congcong Miao, Kunpeng Zhang, Qiang Gao, Wei Wang, Xin Yang

arxiv:2109.00968 v2 · 2021-09-02 · cs.IR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2QBTW46YJUTJ5HHWXJUCOKMMHW}

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	2026-07-05T03:12:50.676639Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d4033b73d84d269e9cf6ba6827298c3d83bedf46f0525141d2972fb49e0e388b

Aliases

arxiv: 2109.00968 · arxiv_version: 2109.00968v2 · doi: 10.48550/arxiv.2109.00968 · pith_short_12: 2QBTW46YJUTJ · pith_short_16: 2QBTW46YJUTJ5HHW · pith_short_8: 2QBTW46Y

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/2QBTW46YJUTJ5HHWXJUCOKMMHW \
  | 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: d4033b73d84d269e9cf6ba6827298c3d83bedf46f0525141d2972fb49e0e388b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bf191816fbd59497379e110596893a20779bbfaac71d344faa887fad90b780b5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2021-09-02T14:11:09Z",
    "title_canon_sha256": "07bdb6769bd2d0e5315b498cbf96e914426bec0c95b24c5c53b52c6e6d55469b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.00968",
    "kind": "arxiv",
    "version": 2
  }
}