Pith Number

pith:MT4WEPQU

pith:2025:MT4WEPQUZVSAKEWI2D2LC64A2K

not attested not anchored not stored refs pending

Investigating task-specific prompts and sparse autoencoders for activation monitoring

Dan Mossing, Henk Tillman

arxiv:2504.20271 v1 · 2025-04-28 · 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{MT4WEPQUZVSAKEWI2D2LC64A2K}

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

3 papers in Pith

Do Linear Probes Generalize Better in Persona Coordinates?

The Impact of Off-Policy Training Data on Probe Generalisation

Do Linear Probes Generalize Better in Persona Coordinates?

Receipt and verification

First computed	2026-07-05T10:55:39.798488Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

64f9623e14cd640512c8d0f4b17b80d29b8fb7d4c0c3dddd1e66947c23bee38f

Aliases

arxiv: 2504.20271 · arxiv_version: 2504.20271v1 · doi: 10.48550/arxiv.2504.20271 · pith_short_12: MT4WEPQUZVSA · pith_short_16: MT4WEPQUZVSAKEWI · pith_short_8: MT4WEPQU

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/MT4WEPQUZVSAKEWI2D2LC64A2K \
  | 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: 64f9623e14cd640512c8d0f4b17b80d29b8fb7d4c0c3dddd1e66947c23bee38f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4a43b82cc68ae0af8970ce3663a95d3923b7b044e613bfb0ca123dc721b27475",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-04-28T21:28:17Z",
    "title_canon_sha256": "5668ebe0fcb7c0c669a50761bcd54fa18f8c610615d8e303f78cc11395aec14f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.20271",
    "kind": "arxiv",
    "version": 1
  }
}