Pith Number

pith:OSC77GFJ

pith:2021:OSC77GFJFTHTVUG3RTHJHZU5R3

not attested not anchored not stored refs pending

Online certification of preference-based fairness for personalized recommender systems

Jamal Atif, Nicolas Usunier, Sam Corbett-Davies, Virginie Do

arxiv:2104.14527 v5 · 2021-04-29 · cs.LG · cs.AI · cs.CY · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OSC77GFJFTHTVUG3RTHJHZU5R3}

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	2026-07-05T05:47:55.069097Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7485ff98a92ccf3ad0db8cce93e69d8ece69b74596e7b2cb6b67ef4c77d3fe87

Aliases

arxiv: 2104.14527 · arxiv_version: 2104.14527v5 · doi: 10.48550/arxiv.2104.14527 · pith_short_12: OSC77GFJFTHT · pith_short_16: OSC77GFJFTHTVUG3 · pith_short_8: OSC77GFJ

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/OSC77GFJFTHTVUG3RTHJHZU5R3 \
  | 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: 7485ff98a92ccf3ad0db8cce93e69d8ece69b74596e7b2cb6b67ef4c77d3fe87

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "dddadc456add13e53f23380704ff84a03d0ff4e26c704619b410c939b25b22cd",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.CY",
      "stat.ML"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2021-04-29T17:45:27Z",
    "title_canon_sha256": "b9e1e383d2f42458bc240aafb48a42442663ff09801dc91fe8295010a1dd59d6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2104.14527",
    "kind": "arxiv",
    "version": 5
  }
}