Pith Number

pith:FT42FTZ5

pith:2025:FT42FTZ5P6VKCJR64G6GFLKOGM

not attested not anchored not stored refs pending

Unidentified and Confounded? Understanding Two-Tower Models for Unbiased Learning to Rank

Maarten de Rijke, Onno Zoeter, Philipp Hager

arxiv:2506.20501 v1 · 2025-06-25 · cs.IR · 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{FT42FTZ5P6VKCJR64G6GFLKOGM}

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	2026-07-05T11:27:06.813044Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2cf9a2cf3d7faaa1263ee1bc62ad4e33093f7e21d78cbf23d8aa446644d94a4d

Aliases

arxiv: 2506.20501 · arxiv_version: 2506.20501v1 · doi: 10.48550/arxiv.2506.20501 · pith_short_12: FT42FTZ5P6VK · pith_short_16: FT42FTZ5P6VKCJR6 · pith_short_8: FT42FTZ5

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/FT42FTZ5P6VKCJR64G6GFLKOGM \
  | 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: 2cf9a2cf3d7faaa1263ee1bc62ad4e33093f7e21d78cbf23d8aa446644d94a4d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fb1938bf4a026ec65bac7adb6d136444c4f0c8bb824a4fc617d2fd7cc089a5fd",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.IR",
    "submitted_at": "2025-06-25T14:47:43Z",
    "title_canon_sha256": "5be59327cdd6f59ada6e78cf2ef0e56cc30a48f0c611dd237751f18afa2ca663"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2506.20501",
    "kind": "arxiv",
    "version": 1
  }
}