Pith Number

pith:IZFHX2B5

pith:2025:IZFHX2B5VHUNPGSZ7C55PZ7CSV

not attested not anchored not stored refs pending

Constrained Machine Learning Through Hyperspherical Representation

Gaetano Signorelli, Michele Lombardi

arxiv:2504.08415 v1 · 2025-04-11 · 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{IZFHX2B5VHUNPGSZ7C55PZ7CSV}

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	2026-07-05T10:47:48.889983Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

464a7be83da9e8d79a59f8bbd7e7e295584526bf4e633c6a2eda9a67b86d6d10

Aliases

arxiv: 2504.08415 · arxiv_version: 2504.08415v1 · doi: 10.48550/arxiv.2504.08415 · pith_short_12: IZFHX2B5VHUN · pith_short_16: IZFHX2B5VHUNPGSZ · pith_short_8: IZFHX2B5

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/IZFHX2B5VHUNPGSZ7C55PZ7CSV \
  | 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: 464a7be83da9e8d79a59f8bbd7e7e295584526bf4e633c6a2eda9a67b86d6d10

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f005239127402b0290654fc1ff62beee17d3f0edf3ae73b0015901bac48bb82c",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-04-11T10:19:49Z",
    "title_canon_sha256": "900f43a53dc7f3be2122c38ddc9af16c1d05977b2e8fcf79b9bb621d0c07e503"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2504.08415",
    "kind": "arxiv",
    "version": 1
  }
}