Pith Number

pith:Q4MWDGYY

pith:2026:Q4MWDGYYWEMVOFV22PF2JJP47D

not attested not anchored not stored refs pending

Attention-based PCA

Claire Boyer (IUF), Rodrigo Maulen-Soto (LPSM, SU)

arxiv:2605.18315 v1 · 2026-05-18 · math.OC · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{Q4MWDGYYWEMVOFV22PF2JJP47D}

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	2026-05-20T00:05:54.730914Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8719619b18b1195716bad3cba4a5fcf8d7288c3a8a032ecfe267221a92f75961

Aliases

arxiv: 2605.18315 · arxiv_version: 2605.18315v1 · doi: 10.48550/arxiv.2605.18315 · pith_short_12: Q4MWDGYYWEMV · pith_short_16: Q4MWDGYYWEMVOFV2 · pith_short_8: Q4MWDGYY

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/Q4MWDGYYWEMVOFV22PF2JJP47D \
  | 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: 8719619b18b1195716bad3cba4a5fcf8d7288c3a8a032ecfe267221a92f75961

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0aab1eb70fcf4c7ecddd044a73d855707ad859d2eeb5efcbb52e113ac8a21db2",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2026-05-18T12:34:00Z",
    "title_canon_sha256": "a9b3a2cf6ff963f06f3eb98bede21ba1ec674f46a3b327013dbea97c55ad1612"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.18315",
    "kind": "arxiv",
    "version": 1
  }
}