Pith Number

pith:RE75OOR6

pith:2024:RE75OOR6M2XS4LHWP5XD44IE2Y

not attested not anchored not stored refs pending

Watermarking Recommender Systems

Cheng Long, Hongxu Chen, Hongzhi Yin, Sixiao Zhang, Wei Yuan

arxiv:2407.21034 v3 · 2024-07-17 · cs.IR · cs.CR · 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{RE75OOR6M2XS4LHWP5XD44IE2Y}

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	2026-07-05T09:13:06.405377Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

893fd73a3e66af2e2cf67f6e3e7104d6305e0d04ee532845c21622088c79e8e8

Aliases

arxiv: 2407.21034 · arxiv_version: 2407.21034v3 · doi: 10.48550/arxiv.2407.21034 · pith_short_12: RE75OOR6M2XS · pith_short_16: RE75OOR6M2XS4LHW · pith_short_8: RE75OOR6

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/RE75OOR6M2XS4LHWP5XD44IE2Y \
  | 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: 893fd73a3e66af2e2cf67f6e3e7104d6305e0d04ee532845c21622088c79e8e8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cb25001bbce5023736513affaf6f46db2c494b8d357762c557ab6296e2db85e9",
    "cross_cats_sorted": [
      "cs.CR",
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2024-07-17T06:51:24Z",
    "title_canon_sha256": "8754464b1ff2cb7e528790f488d5987b987c90fd9de3753c82d9d19bf857aefa"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2407.21034",
    "kind": "arxiv",
    "version": 3
  }
}