Pith Number

pith:K7QOU42H

pith:2025:K7QOU42H5WDALAOPCQ4CTQ5RWV

not attested not anchored not stored refs pending

Matrix Factorization for Inferring Associations and Missing Links

Boian Alexandrov, Cynthia Matuszek, Duc P. Truong, James Wendelberger, Maksim E. Eren, Mary F. Dorn, Ryan Barron

arxiv:2503.04680 v1 · 2025-03-06 · cs.LG · cs.AI · cs.LO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{K7QOU42H5WDALAOPCQ4CTQ5RWV}

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	2026-07-05T10:25:45.077934Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

57e0ea7347ed860581cf143829c3b1b576e454124b9971d55654ac2fb785ab51

Aliases

arxiv: 2503.04680 · arxiv_version: 2503.04680v1 · doi: 10.48550/arxiv.2503.04680 · pith_short_12: K7QOU42H5WDA · pith_short_16: K7QOU42H5WDALAOP · pith_short_8: K7QOU42H

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/K7QOU42H5WDALAOPCQ4CTQ5RWV \
  | 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: 57e0ea7347ed860581cf143829c3b1b576e454124b9971d55654ac2fb785ab51

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3675af6f85983c7cf820f37bee4c8be2d234bf5b9640785fe695c20fd074b797",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.LO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2025-03-06T18:22:46Z",
    "title_canon_sha256": "e9701666eb6d7ffb4c3e99449bfe8c99b5e7fb12ec642327cc46264a4974668a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2503.04680",
    "kind": "arxiv",
    "version": 1
  }
}