Pith Number

pith:LUTV4YT4

pith:2026:LUTV4YT4O7GY4OEPQV7UDYHVLP

not attested not anchored not stored refs pending

Extracting Algorithms in Pre-trained LLMs: A Case on Hidden Markov Models

Jennifer J. Sun, Sarah Dean, Yahya Sattar, Yijia Dai, Zhaolin Gao

arxiv:2607.22646 v1 · 2026-06-24 · 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{LUTV4YT4O7GY4OEPQV7UDYHVLP}

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	2026-07-28T00:21:47.009327Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5d275e627c77cd8e388f857f41e0f55bd4f3b52d13134ad0f2e01ad706b329fa

Aliases

arxiv: 2607.22646 · arxiv_version: 2607.22646v1 · doi: 10.48550/arxiv.2607.22646 · pith_short_12: LUTV4YT4O7GY · pith_short_16: LUTV4YT4O7GY4OEP · pith_short_8: LUTV4YT4

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/LUTV4YT4O7GY4OEPQV7UDYHVLP \
  | 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: 5d275e627c77cd8e388f857f41e0f55bd4f3b52d13134ad0f2e01ad706b329fa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "376d30a24dbdf443fca3785eb694175eeb60fd30a2cbb24cb360a093f3b88189",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2026-06-24T17:42:19Z",
    "title_canon_sha256": "418474d4da1cf3436075d76c499af0853c0766259a9ab2ffea80a9cd449ad5a8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.22646",
    "kind": "arxiv",
    "version": 1
  }
}