Pith Number

pith:HQCIS4YC

pith:2026:HQCIS4YCFGVK6DO5IKZCBEOUTZ

not attested not anchored not stored refs pending

Robust Personalized Recommendation under Hidden Confounding in MNAR

Tianyu Xia, Wanting Su, Zongyu Li

arxiv:2605.21066 v1 · 2026-05-20 · 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{HQCIS4YCFGVK6DO5IKZCBEOUTZ}

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	2026-05-21T01:05:34.895705Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3c0489730229aaaf0ddd42b22091d49e4cedddd5109f0b2728b51b3811a2cc39

Aliases

arxiv: 2605.21066 · arxiv_version: 2605.21066v1 · doi: 10.48550/arxiv.2605.21066 · pith_short_12: HQCIS4YCFGVK · pith_short_16: HQCIS4YCFGVK6DO5 · pith_short_8: HQCIS4YC

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/HQCIS4YCFGVK6DO5IKZCBEOUTZ \
  | 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: 3c0489730229aaaf0ddd42b22091d49e4cedddd5109f0b2728b51b3811a2cc39

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "32f571b8f89fddfc7932b3d8b0545bdd9e95c988b3b74c3d0017d6e9b0b60998",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-05-20T11:53:12Z",
    "title_canon_sha256": "f1a1cb70e7b49403583ee3a0049b99f98b8d8f211b8618c7ff5363728595f68d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.21066",
    "kind": "arxiv",
    "version": 1
  }
}