Pith Number

pith:E37SSQEN

pith:2025:E37SSQENYNU4CIMPEBELR6AF7O

not attested not anchored not stored refs pending

Orthogonal greedy algorithm for linear operator learning with shallow neural network

Jiwei Jia, Ran Zhang, Ye Lin, Young Ju Lee

arxiv:2501.02791 v1 · 2025-01-06 · math.NA · cs.LG · cs.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{E37SSQENYNU4CIMPEBELR6AF7O}

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	2026-07-05T09:57:12.298139Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

26ff29408dc369c1218f2048b8f805fb8a0ed543757bbc91332290e45d650148

Aliases

arxiv: 2501.02791 · arxiv_version: 2501.02791v1 · doi: 10.48550/arxiv.2501.02791 · pith_short_12: E37SSQENYNU4 · pith_short_16: E37SSQENYNU4CIMP · pith_short_8: E37SSQEN

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/E37SSQENYNU4CIMPEBELR6AF7O \
  | 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: 26ff29408dc369c1218f2048b8f805fb8a0ed543757bbc91332290e45d650148

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "cf65baf534b42cbc012eb63f33a894d88f908628658b79d1e032e5009e1feef6",
    "cross_cats_sorted": [
      "cs.LG",
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2025-01-06T06:18:38Z",
    "title_canon_sha256": "a8d69633c582d243187abdb37cdbded0e1e34516598229325b10151653d3117d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.02791",
    "kind": "arxiv",
    "version": 1
  }
}