Pith Number

pith:QWUAW2JJ

pith:2008:QWUAW2JJHDVUCRDK36JRQ74LUC

not attested not anchored not stored refs pending

Proximal alternating minimization and projection methods for nonconvex problems. An approach based on the Kurdyka-Lojasiewicz inequality

Antoine Soubeyran, Hedy Attouch, Jerome Bolte, Patrick Redont

arxiv:0801.1780 v3 · 2008-01-11 · 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{QWUAW2JJHDVUCRDK36JRQ74LUC}

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	2026-05-18T03:35:54.744090Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

85a80b692938eb41446adf93187f8ba08b11a3e9cd8ddcac45ffcfec15618851

Aliases

arxiv: 0801.1780 · arxiv_version: 0801.1780v3 · doi: 10.48550/arxiv.0801.1780 · pith_short_12: QWUAW2JJHDVU · pith_short_16: QWUAW2JJHDVUCRDK · pith_short_8: QWUAW2JJ

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/QWUAW2JJHDVUCRDK36JRQ74LUC \
  | 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: 85a80b692938eb41446adf93187f8ba08b11a3e9cd8ddcac45ffcfec15618851

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5833f15329bf3f8e8ab8a7d57e766a1aa4572f7621d5d07ec7d6124b3e271b61",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2008-01-11T13:54:05Z",
    "title_canon_sha256": "918eb9e995f525a93efe9b6327855730f29f7208610275c0e23da40c3b2aac57"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0801.1780",
    "kind": "arxiv",
    "version": 3
  }
}