Pith Number

pith:UTOL5HBA

pith:2025:UTOL5HBAT2NGJUHBK546V6MNOU

not attested not anchored not stored refs pending

The Origin of Self-Attention: Pairwise Affinity Matrices in Feature Selection and the Emergence of Self-Attention

Giorgio Roffo

arxiv:2507.14560 v2 · 2025-07-19 · cs.LG · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UTOL5HBAT2NGJUHBK546V6MNOU}

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	2026-07-05T11:43:33.825803Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a4dcbe9c209e9a64d0e15779eaf98d7505078385cf8a2a4ea47282bfbcb4fab5

Aliases

arxiv: 2507.14560 · arxiv_version: 2507.14560v2 · doi: 10.48550/arxiv.2507.14560 · pith_short_12: UTOL5HBAT2NG · pith_short_16: UTOL5HBAT2NGJUHB · pith_short_8: UTOL5HBA

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/UTOL5HBAT2NGJUHBK546V6MNOU \
  | 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: a4dcbe9c209e9a64d0e15779eaf98d7505078385cf8a2a4ea47282bfbcb4fab5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "91450815217a00694a0d39de81d52e0ee6208fdb474ef9c250f4bec572428996",
    "cross_cats_sorted": [
      "cs.CV"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-07-19T09:51:03Z",
    "title_canon_sha256": "b462be50c7cb532b9c45c0880c2134b26beaf4b355fba76ba224aaac8e7c5319"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2507.14560",
    "kind": "arxiv",
    "version": 2
  }
}