Pith Number

pith:VJM6SH5T

pith:2026:VJM6SH5T7M2HMCHSXQ534FD2XH

not attested not anchored not stored refs pending

Anatomy of Post-Training: Using Interpretability to Characterize Data and Shape the Learning Signal

Atticus Geiger, Daniel Balsam, Dhruvil Gala, Ekdeep Singh Lubana, Jack Merullo, Leon Bergen, Matthew Kowal, Max Loeffler, Owen Lewis, Raphael Sarfati, Ryan Panwar, Santiago Aranguri, Siddharth Boppana, Sidharth Baskaran, Thomas Fel, Thomas McGrath, Usha Bhalla

arxiv:2606.12360 v1 · 2026-06-10 · 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{VJM6SH5T7M2HMCHSXQ534FD2XH}

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	2026-06-11T02:09:48.284306Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

aa59e91fb3fb347608f2bc3bbe147ab9c2f08241aa9c96792b08fedc36b1f63d

Aliases

arxiv: 2606.12360 · arxiv_version: 2606.12360v1 · doi: 10.48550/arxiv.2606.12360 · pith_short_12: VJM6SH5T7M2H · pith_short_16: VJM6SH5T7M2HMCHS · pith_short_8: VJM6SH5T

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/VJM6SH5T7M2HMCHSXQ534FD2XH \
  | 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: aa59e91fb3fb347608f2bc3bbe147ab9c2f08241aa9c96792b08fedc36b1f63d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "304e9661467d50f8ea0a61aeb1da6798f6336ca8a1959d8daa9a3683e097d0b5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-06-10T17:31:16Z",
    "title_canon_sha256": "c9800cf04ef29c04091b59112c1b23c9fe07a9d42fdd87b94838f1fbc99563d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.12360",
    "kind": "arxiv",
    "version": 1
  }
}