Pith Number

pith:UH6ZYSVR

pith:2026:UH6ZYSVRKTIBAO66TWGQOXAPFW

not attested not anchored not stored refs pending

Unstable Features, Reproducible Subspaces: Understanding Seed Dependence in Sparse Autoencoders

Daniil Gavrilov, Daniil Laptev, Gleb Gerasimov, Nikita Balagansky, Timofei Rusalev, Vadim Kurochkin

arxiv:2606.12138 v1 · 2026-06-10 · cs.LG · cs.AI · cs.CL

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UH6ZYSVRKTIBAO66TWGQOXAPFW}

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	2026-06-11T01:10:50.339677Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a1fd9c4ab154d0103bde9d8d075c0f2db74c35695db8ad93c5091e4424b37ecc

Aliases

arxiv: 2606.12138 · arxiv_version: 2606.12138v1 · doi: 10.48550/arxiv.2606.12138 · pith_short_12: UH6ZYSVRKTIB · pith_short_16: UH6ZYSVRKTIBAO66 · pith_short_8: UH6ZYSVR

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/UH6ZYSVRKTIBAO66TWGQOXAPFW \
  | 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: a1fd9c4ab154d0103bde9d8d075c0f2db74c35695db8ad93c5091e4424b37ecc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "79fb7233385aa70bee10e087c035980d1fc7f57df89e4ae7827487c0204048e3",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.CL"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-06-10T14:32:57Z",
    "title_canon_sha256": "f63f1a941b610f744f9b1d29be963f3242af683a9a58c18090df63a06b6d63f1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.12138",
    "kind": "arxiv",
    "version": 1
  }
}