Pith Number

pith:SSUFQTHG

pith:2017:SSUFQTHGEI3UC2N5BA6VOJFQ3A

not attested not anchored not stored refs pending

Noise Level Estimation for Overcomplete Dictionary Learning Based on Tight Asymptotic Bounds

Changshui Yang, Huizhu Jia, Rui Chen, Xiaodong Xie

arxiv:1712.03381 v1 · 2017-12-09 · eess.SP · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SSUFQTHGEI3UC2N5BA6VOJFQ3A}

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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.

Receipt and verification

First computed	2026-05-18T00:28:21.443595Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

94a8584ce622374169bd083d5724b0d83835e16eaa3abf0c63744b1807197837

Aliases

arxiv: 1712.03381 · arxiv_version: 1712.03381v1 · doi: 10.48550/arxiv.1712.03381 · pith_short_12: SSUFQTHGEI3U · pith_short_16: SSUFQTHGEI3UC2N5 · pith_short_8: SSUFQTHG

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/SSUFQTHGEI3UC2N5BA6VOJFQ3A \
  | 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: 94a8584ce622374169bd083d5724b0d83835e16eaa3abf0c63744b1807197837

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bc2b8ab664aae6a52990df6e230134bbe709ed45fffcb56c08e35fd51dff3e1f",
    "cross_cats_sorted": [
      "cs.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SP",
    "submitted_at": "2017-12-09T12:42:29Z",
    "title_canon_sha256": "71d88f32618a854e178e4e68e6cccb52ddb307821f5d00c79d396c71c1554dae"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1712.03381",
    "kind": "arxiv",
    "version": 1
  }
}