Pith Number

pith:KTPEYQNW

pith:2021:KTPEYQNW33IY6B7D26UMATCXIU

not attested not anchored not stored refs pending

Identifiability in Two-Layer Sparse Matrix Factorization

Elisa Riccietti (DANTE), L\'eon Zheng (DANTE), R\'emi Gribonval (DANTE)

arxiv:2110.01235 v2 · 2021-10-04 · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{KTPEYQNW33IY6B7D26UMATCXIU}

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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.

Cited by

1 paper in Pith

Sparse Weight Decomposition for Efficient Circuit Extraction

Receipt and verification

First computed	2026-07-05T03:32:54.815073Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

54de4c41b6ded18f07e3d7a8c04c574510c1b1f4cd80ef92e4770e4938f5806d

Aliases

arxiv: 2110.01235 · arxiv_version: 2110.01235v2 · doi: 10.48550/arxiv.2110.01235 · pith_short_12: KTPEYQNW33IY · pith_short_16: KTPEYQNW33IY6B7D · pith_short_8: KTPEYQNW

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/KTPEYQNW33IY6B7D26UMATCXIU \
  | 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: 54de4c41b6ded18f07e3d7a8c04c574510c1b1f4cd80ef92e4770e4938f5806d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "65f4853cd2ac4273e90d7ec33990a4e231ea52c437884e6d37d2b6e14c69c0d7",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2021-10-04T07:56:37Z",
    "title_canon_sha256": "aacb2d9e3dfae3e017777392538c3ebf5de188a6b1a26f9bc81c91d8392bc2e1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2110.01235",
    "kind": "arxiv",
    "version": 2
  }
}