Pith Number

pith:4ZRQRLEW

pith:2022:4ZRQRLEWBPZ7AFTF2HAAM6XKMX

not attested not anchored not stored refs pending

Unsupervised Graph Poisoning Attack via Contrastive Loss Back-propagation

Guandong Xu, Hongxu Chen, Sixiao Zhang, Xiangguo Sun, Yicong Li

arxiv:2201.07986 v3 · 2022-01-20 · cs.LG · 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{4ZRQRLEWBPZ7AFTF2HAAM6XKMX}

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	2026-07-05T03:51:58.466765Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e66308ac960bf3f01665d1c0067aea65ea0964e77747da39fa1a0fd4a3894996

Aliases

arxiv: 2201.07986 · arxiv_version: 2201.07986v3 · doi: 10.48550/arxiv.2201.07986 · pith_short_12: 4ZRQRLEWBPZ7 · pith_short_16: 4ZRQRLEWBPZ7AFTF · pith_short_8: 4ZRQRLEW

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/4ZRQRLEWBPZ7AFTF2HAAM6XKMX \
  | 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: e66308ac960bf3f01665d1c0067aea65ea0964e77747da39fa1a0fd4a3894996

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cb4bcd90b58cc98e7bc36dfa8ef57a30e1c67c59388f0227a2379b122d8c30e5",
    "cross_cats_sorted": [
      "cs.IR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2022-01-20T03:32:21Z",
    "title_canon_sha256": "11e1d7e0e60d7a2c883f2463df3e3f23d25bdaf2dd514c59dfcad63658bcc21c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2201.07986",
    "kind": "arxiv",
    "version": 3
  }
}