Pith Number

pith:XBNJLRIH

pith:2026:XBNJLRIHBY5EL37UUAKDFGGDMF

not attested not anchored not stored refs pending

Feature Geometry of LoRA Adapters: A Sparse Autoencoder Analysis of Representational Divergence in Fine-Tuned Language Models

Prasanth K K

arxiv:2605.28896 v1 · 2026-05-27 · 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{XBNJLRIHBY5EL37UUAKDFGGDMF}

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	2026-05-29T00:04:15.713555Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b85a95c5070e3a45eff4a0143298c3615bc9ee13a5d775080f858f1715637aeb

Aliases

arxiv: 2605.28896 · arxiv_version: 2605.28896v1 · doi: 10.48550/arxiv.2605.28896 · pith_short_12: XBNJLRIHBY5E · pith_short_16: XBNJLRIHBY5EL37U · pith_short_8: XBNJLRIH

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/XBNJLRIHBY5EL37UUAKDFGGDMF \
  | 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: b85a95c5070e3a45eff4a0143298c3615bc9ee13a5d775080f858f1715637aeb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "50072ca0bcd04e167e31eebfa07c4ac660792bd57cc9b7bac7f2730c3abe37f3",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-05-27T11:54:23Z",
    "title_canon_sha256": "5b78ee8fef310170e617922d3c7189329e32b88e27707db0b0feb216edd65c6e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.28896",
    "kind": "arxiv",
    "version": 1
  }
}