Pith Number

pith:C6A7VSIW

pith:2026:C6A7VSIWLOH3JVSH5QZXB4IMMI

not attested not anchored not stored refs pending

Distilling Linearized Behavior for Effective Task Arithmetic

Angelo Porrello, Francesca Morandi, Simone Calderara, Thomas Sommariva

arxiv:2605.18993 v1 · 2026-05-18 · cs.LG · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{C6A7VSIWLOH3JVSH5QZXB4IMMI}

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	2026-05-20T00:06:41.984092Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

1781fac9165b8fb4d647ec3370f10c620e3c04a2afa0274837a52e52ddc07291

Aliases

arxiv: 2605.18993 · arxiv_version: 2605.18993v1 · doi: 10.48550/arxiv.2605.18993 · pith_short_12: C6A7VSIWLOH3 · pith_short_16: C6A7VSIWLOH3JVSH · pith_short_8: C6A7VSIW

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/C6A7VSIWLOH3JVSH5QZXB4IMMI \
  | 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: 1781fac9165b8fb4d647ec3370f10c620e3c04a2afa0274837a52e52ddc07291

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4d97c009f2dd9865c40a159bf6a52dd7b692ad3eebae8e7cedc5ae26b953c672",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2026-05-18T18:11:34Z",
    "title_canon_sha256": "54f8681727d76106d5378b2f81306f574451c1d29b2ae79783c0bca66c9a8db9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.18993",
    "kind": "arxiv",
    "version": 1
  }
}