Pith Number

pith:BL3QZIKO

pith:2025:BL3QZIKOIJDH2UXYTDL2GYCBI7

not attested not anchored not stored refs pending

Unsupervised Detection of Fraudulent Transactions in E-commerce Using Contrastive Learning

Tengda Tang, Xiaoxuan Sun, Xuan Li, Yifei Duan, Yuting Peng, Zhou Fang

arxiv:2503.18841 v1 · 2025-03-24 · 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{BL3QZIKOIJDH2UXYTDL2GYCBI7}

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	2026-07-05T10:38:27.334894Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0af70ca14e42467d52f898d7a3604147d9130e890b6b7285b22e6d74b62e8bed

Aliases

arxiv: 2503.18841 · arxiv_version: 2503.18841v1 · doi: 10.48550/arxiv.2503.18841 · pith_short_12: BL3QZIKOIJDH · pith_short_16: BL3QZIKOIJDH2UXY · pith_short_8: BL3QZIKO

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/BL3QZIKOIJDH2UXYTDL2GYCBI7 \
  | 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: 0af70ca14e42467d52f898d7a3604147d9130e890b6b7285b22e6d74b62e8bed

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4984b40c658c9f5c824eab0e2e4a975041731b20e38d33c8e892383c577f7259",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-03-24T16:14:16Z",
    "title_canon_sha256": "a3c10f0e2f415c773049d741b6a5d3d3c984ea32cb96ef38246e28baf3c002cb"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2503.18841",
    "kind": "arxiv",
    "version": 1
  }
}