Pith Number

pith:5FFXL32F

pith:2022:5FFXL32FQKFUL4MLIRR6VTHJEL

not attested not anchored not stored refs pending

Variational Sparse Coding with Learned Thresholding

Christopher J. Rozell, Kion Fallah

arxiv:2205.03665 v2 · 2022-05-07 · cs.LG · eess.SP · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5FFXL32FQKFUL4MLIRR6VTHJEL}

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	2026-07-05T04:53:41.989429Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e94b75ef45828b45f18b4463eacce922e78d4410e9187bd8eb6709c7714e2f1f

Aliases

arxiv: 2205.03665 · arxiv_version: 2205.03665v2 · doi: 10.48550/arxiv.2205.03665 · pith_short_12: 5FFXL32FQKFU · pith_short_16: 5FFXL32FQKFUL4ML · pith_short_8: 5FFXL32F

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/5FFXL32FQKFUL4MLIRR6VTHJEL \
  | 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: e94b75ef45828b45f18b4463eacce922e78d4410e9187bd8eb6709c7714e2f1f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "21a54f3b11c5b5d7a330b1c726cea085e1edcfcba65626572a77ba9bcafe682e",
    "cross_cats_sorted": [
      "eess.SP",
      "stat.ML"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2022-05-07T14:49:50Z",
    "title_canon_sha256": "65c8b377e55a54c8a81791d1f76680dd970e982f88ff964c9d203a8f266fd0f3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2205.03665",
    "kind": "arxiv",
    "version": 2
  }
}