Pith Number

pith:QPHWAUG5

pith:2018:QPHWAUG54U36YHYVICFVDAQTFN

not attested not anchored not stored refs pending

User Fairness in Recommender Systems

Avishek Anand, Jurek Leonhardt, Megha Khosla

arxiv:1807.06349 v1 · 2018-07-17 · cs.CY · 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{QPHWAUG54U36YHYVICFVDAQTFN}

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	2026-05-18T00:10:33.292005Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

83cf6050dde537ec1f15408b5182132b7a868669762083f8f1395290fbea2f95

Aliases

arxiv: 1807.06349 · arxiv_version: 1807.06349v1 · doi: 10.48550/arxiv.1807.06349 · pith_short_12: QPHWAUG54U36 · pith_short_16: QPHWAUG54U36YHYV · pith_short_8: QPHWAUG5

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/QPHWAUG54U36YHYVICFVDAQTFN \
  | 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: 83cf6050dde537ec1f15408b5182132b7a868669762083f8f1395290fbea2f95

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2c21be11c0552187e1e20e93df76a979bf5f581169eed0c21b655365579ef6bc",
    "cross_cats_sorted": [
      "cs.IR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CY",
    "submitted_at": "2018-07-17T11:19:42Z",
    "title_canon_sha256": "0f35b16a15a848592eb133cce4c554571e2e289c7a02db98b7bbf06b8c11142e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.06349",
    "kind": "arxiv",
    "version": 1
  }
}