Pith Number

pith:VNQV46QI

pith:2026:VNQV46QI54FTINRXTP3ANOXS4Z

not attested not anchored not stored refs pending

All Leaks Count, Some Count More: Interpretable Temporal Contamination Detection and Mitigation in LLM Backtesting

Bradly C. Stadie, Ryan Chen, Zeyu Zhang

arxiv:2602.17234 v2 · 2026-02-19 · cs.AI · 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{VNQV46QI54FTINRXTP3ANOXS4Z}

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	2026-05-26T02:04:06.682273Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ab615e7a08ef0b3436379bf606baf2e65a8d63d262102e2373dd75feced553cd

Aliases

arxiv: 2602.17234 · arxiv_version: 2602.17234v2 · doi: 10.48550/arxiv.2602.17234 · pith_short_12: VNQV46QI54FT · pith_short_16: VNQV46QI54FTINRX · pith_short_8: VNQV46QI

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/VNQV46QI54FTINRXTP3ANOXS4Z \
  | 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: ab615e7a08ef0b3436379bf606baf2e65a8d63d262102e2373dd75feced553cd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7e76d88cfcab52cd0009ddf06cba13bac5e7f8c0b779e39ab7ab711783d9c043",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2026-02-19T10:28:00Z",
    "title_canon_sha256": "80fd87a5e58afb145f57fdb9d5a3e787fa62d7127203f0f2894618ac2342f1de"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2602.17234",
    "kind": "arxiv",
    "version": 2
  }
}