Pith Number

pith:JQ7DIXJM

pith:2025:JQ7DIXJMDGRF5XBG4S4F5F5E5D

not attested not anchored not stored refs pending

Exploring the Limitations of Structured Orthogonal Dictionary Learning

Aditya Siripuram, Anirudh Dash

arxiv:2501.15094 v2 · 2025-01-25 · eess.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JQ7DIXJMDGRF5XBG4S4F5F5E5D}

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	2026-07-05T10:50:46.823538Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4c3e345d2c19a25edc26e4b85e97a4e8d11e59fb2bd74a1145a3e05be3ca51b7

Aliases

arxiv: 2501.15094 · arxiv_version: 2501.15094v2 · doi: 10.48550/arxiv.2501.15094 · pith_short_12: JQ7DIXJMDGRF · pith_short_16: JQ7DIXJMDGRF5XBG · pith_short_8: JQ7DIXJM

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/JQ7DIXJMDGRF5XBG4S4F5F5E5D \
  | 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: 4c3e345d2c19a25edc26e4b85e97a4e8d11e59fb2bd74a1145a3e05be3ca51b7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c59b93901dc067cb0d303f25bca953873e936365b282da4962bd6438455ae64a",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2025-01-25T06:00:52Z",
    "title_canon_sha256": "a6870c0c54102b6fd6785c951789065c579691781268a2a783cf1f83e6338641"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2501.15094",
    "kind": "arxiv",
    "version": 2
  }
}