Pith Number

pith:ABEABRRZ

pith:2026:ABEABRRZJRCJ5STP5B7ZLWJKVA

not attested not anchored not stored refs pending

BrainSurgery: Reproducible and Reliable Declarative Weight Manipulations for Model Editing and Upcycling

Andrea Blasi N\'u\~nez, Annemette Broch Pirchert, Gianluca Barmina, Lukas Galke Poech, Peter Schneider-Kamp

arxiv:2606.09707 v1 · 2026-06-08 · cs.LG · 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{ABEABRRZJRCJ5STP5B7ZLWJKVA}

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	2026-06-09T02:09:05.037543Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

004800c6394c449eca6fe87f95d92aa82951a5a52863ffeb13bdb879321a9ad0

Aliases

arxiv: 2606.09707 · arxiv_version: 2606.09707v1 · doi: 10.48550/arxiv.2606.09707 · pith_short_12: ABEABRRZJRCJ · pith_short_16: ABEABRRZJRCJ5STP · pith_short_8: ABEABRRZ

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/ABEABRRZJRCJ5STP5B7ZLWJKVA \
  | 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: 004800c6394c449eca6fe87f95d92aa82951a5a52863ffeb13bdb879321a9ad0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e6974f0e5667cad311333798fe6e82c552931aaebef7788fa4ac9fd83477cd7f",
    "cross_cats_sorted": [
      "cs.CL"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-06-08T16:26:09Z",
    "title_canon_sha256": "9e6139d3a08562a6a734c545103cf51e2a82392901263e86f2c65519e0f9c76a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.09707",
    "kind": "arxiv",
    "version": 1
  }
}