Pith Number

pith:WLOUQS2H

pith:2012:WLOUQS2HCWLIULMA53LA6HGFU4

not attested not anchored not stored refs pending

A projection method for approximating fixed points of quasi nonexpansive mappings without the usual demiclosedness condition

Heinz H. Bauschke, Jiawei Chen, Xianfu Wang

arxiv:1211.1639 v1 · 2012-11-07 · math.FA · 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{WLOUQS2HCWLIULMA53LA6HGFU4}

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	2026-05-18T03:41:20.597554Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b2dd484b4715968a2d80eed60f1cc5a726fc7fb2ba1e9d26a9802623591d3104

Aliases

arxiv: 1211.1639 · arxiv_version: 1211.1639v1 · doi: 10.48550/arxiv.1211.1639 · pith_short_12: WLOUQS2HCWLI · pith_short_16: WLOUQS2HCWLIULMA · pith_short_8: WLOUQS2H

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/WLOUQS2HCWLIULMA53LA6HGFU4 \
  | 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: b2dd484b4715968a2d80eed60f1cc5a726fc7fb2ba1e9d26a9802623591d3104

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "001aa0fde11fa069185b9e84f5dcd7da5f0098d07397bc6a62bebaafe385a6fd",
    "cross_cats_sorted": [
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.FA",
    "submitted_at": "2012-11-07T19:01:16Z",
    "title_canon_sha256": "494f64a776026615b16845d22310ae954f767a1d9d30d41445aac4060b6a420e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1211.1639",
    "kind": "arxiv",
    "version": 1
  }
}