Pith Number

pith:FTKVIVYM

pith:2025:FTKVIVYMJYLL7IMDZ4S2FXBRQJ

not attested not anchored not stored refs pending

Deep Contrastive Unlearning for Language Models

Estrid He, Ibrahim Khalil, Ke Wang, Tabinda Sarwar, Xun Yi

arxiv:2503.14900 v1 · 2025-03-19 · cs.CL · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FTKVIVYMJYLL7IMDZ4S2FXBRQJ}

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

Learning-Time Encoding Shapes Unlearning in LLMs

Receipt and verification

First computed	2026-07-05T10:34:26.995205Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2cd554570c4e16bfa183cf25a2dc31824a4c8eda5a6361332731aed7a96004b8

Aliases

arxiv: 2503.14900 · arxiv_version: 2503.14900v1 · doi: 10.48550/arxiv.2503.14900 · pith_short_12: FTKVIVYMJYLL · pith_short_16: FTKVIVYMJYLL7IMD · pith_short_8: FTKVIVYM

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/FTKVIVYMJYLL7IMDZ4S2FXBRQJ \
  | 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: 2cd554570c4e16bfa183cf25a2dc31824a4c8eda5a6361332731aed7a96004b8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "109f0867339eb50ba7df1d5a450d60949edc5163f707c6df5cca2d32bad1d337",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2025-03-19T04:58:45Z",
    "title_canon_sha256": "0339c89f01d9ff5c40d5efc346cfc3212b1ee9cec9961f86a5a4fdc03e8bc2f4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2503.14900",
    "kind": "arxiv",
    "version": 1
  }
}