Pith Number

pith:4MKVLK4A

pith:2025:4MKVLK4AIDHF3YLQTVRO76WSH5

not attested not anchored not stored refs pending

Unmasking the Reality of PII Masking Models: Performance Gaps and the Call for Accountability

Devansh Singh, Sundaraparipurnan Narayanan

arxiv:2504.12308 v1 · 2025-04-05 · cs.CL · 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{4MKVLK4AIDHF3YLQTVRO76WSH5}

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.

Cited by

1 paper in Pith

Reconstruction of Personally Identifiable Information from Supervised Finetuned Models

Receipt and verification

First computed	2026-07-05T10:50:13.794952Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e31555ab8040ce5de1709d62effad23f52edce6bef55c998a647d7719293c2e1

Aliases

arxiv: 2504.12308 · arxiv_version: 2504.12308v1 · doi: 10.48550/arxiv.2504.12308 · pith_short_12: 4MKVLK4AIDHF · pith_short_16: 4MKVLK4AIDHF3YLQ · pith_short_8: 4MKVLK4A

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/4MKVLK4AIDHF3YLQTVRO76WSH5 \
  | 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: e31555ab8040ce5de1709d62effad23f52edce6bef55c998a647d7719293c2e1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5df20c56731cf4c55d945ef4d1fd286f26807662232a898d20cc47b0dc009454",
    "cross_cats_sorted": [
      "cs.CY",
      "cs.IR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2025-04-05T04:34:05Z",
    "title_canon_sha256": "6f948078b4bf5e3db3f8e839373f18c36a8134556ca4b1ad7688f7425609205b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.12308",
    "kind": "arxiv",
    "version": 1
  }
}