Pith Number

pith:JO55HTX4

pith:2026:JO55HTX4VUNZRBHUCEW232LBPO

not attested not anchored not stored refs pending

Decodable but Not Detectable: A Leakage Fingerprint for Near-OOD Benchmarks

Vishnu Bindu Balachandran

arxiv:2607.19393 v1 · 2026-07-02 · cs.LG · cs.AI · cs.CL · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JO55HTX4VUNZRBHUCEW232LBPO}

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	2026-07-23T00:23:47.763301Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4bbbd3cefcad1b9884f4112dade9617baeb3cfd94a64a4bda6f38a636cc0d2fa

Aliases

arxiv: 2607.19393 · arxiv_version: 2607.19393v1 · doi: 10.48550/arxiv.2607.19393 · pith_short_12: JO55HTX4VUNZ · pith_short_16: JO55HTX4VUNZRBHU · pith_short_8: JO55HTX4

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/JO55HTX4VUNZRBHUCEW232LBPO \
  | 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: 4bbbd3cefcad1b9884f4112dade9617baeb3cfd94a64a4bda6f38a636cc0d2fa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b9081138c44a05aae0dd447f0c5fd3aec11226c5fca357a9f00ddbe773da72c7",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.CL",
      "cs.CV"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-07-02T21:31:50Z",
    "title_canon_sha256": "46fbcf4e014d93a9d160f3620a6b6c0b7d88f6061d269990a7d5caae86bbb123"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.19393",
    "kind": "arxiv",
    "version": 1
  }
}