Pith Number

pith:5VLTSHSP

pith:2015:5VLTSHSPJWMPX2SQ6FKTZT3WSC

not attested not anchored not stored refs pending

Bilevel approaches for learning of variational imaging models

Cao Chung, Carola-Bibiane Sch\"onlieb, Juan Carlos De Los Reyes, Luca Calatroni, Tuomo Valkonen

arxiv:1505.02120 v1 · 2015-05-08 · math.OC · cs.CV

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Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5VLTSHSPJWMPX2SQ6FKTZT3WSC}

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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	2026-05-18T01:09:46.955645Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ed57391e4f4d98fbea50f1553ccf7690bcac66ad89079ad3694cdebff775a6a4

Aliases

arxiv: 1505.02120 · arxiv_version: 1505.02120v1 · doi: 10.48550/arxiv.1505.02120 · pith_short_12: 5VLTSHSPJWMP · pith_short_16: 5VLTSHSPJWMPX2SQ · pith_short_8: 5VLTSHSP

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/5VLTSHSPJWMPX2SQ6FKTZT3WSC \
  | 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: ed57391e4f4d98fbea50f1553ccf7690bcac66ad89079ad3694cdebff775a6a4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "65bc0296fc916238ded957f1e2e9aa37fc28fdafb9da0c4ed1af7c79d7480408",
    "cross_cats_sorted": [
      "cs.CV"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2015-05-08T18:27:34Z",
    "title_canon_sha256": "b161322e04fc3c9e3476d192354fd15c8303ca3b4c9770b5affd3ab1c8aa4300"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.02120",
    "kind": "arxiv",
    "version": 1
  }
}