Pith Number

pith:YC2ZSU47

pith:2008:YC2ZSU47NT3XAXSOKIMO523R7O

not attested not anchored not stored refs pending

Nested iterative algorithms for convex constrained image recovery problems

Caroline Chaux, Jean-Christophe Pesquet, Nelly Pustelnik

arxiv:0806.3920 v8 · 2008-06-24 · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YC2ZSU47NT3XAXSOKIMO523R7O}

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	2026-05-18T03:38:46.656147Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c0b599539f6cf7705e4e5218eeeb71fbb30c7430e15a8e2b3134a6f8588cf94b

Aliases

arxiv: 0806.3920 · arxiv_version: 0806.3920v8 · doi: 10.48550/arxiv.0806.3920 · pith_short_12: YC2ZSU47NT3X · pith_short_16: YC2ZSU47NT3XAXSO · pith_short_8: YC2ZSU47

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/YC2ZSU47NT3XAXSOKIMO523R7O \
  | 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: c0b599539f6cf7705e4e5218eeeb71fbb30c7430e15a8e2b3134a6f8588cf94b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ecd738c8900e6a90a7483f9d944bd07036ca7d6bc6f4539afa31c9db03d1715d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2008-06-24T16:35:55Z",
    "title_canon_sha256": "685ef387eba53c4d25dded5ea679df527d93ea82b62a26f5f4595221756860fc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0806.3920",
    "kind": "arxiv",
    "version": 8
  }
}