Pith Number

pith:P5LPOIZB

pith:2017:P5LPOIZBSNFWF7AYMTHEQYCDQB

not attested not anchored not stored refs pending

Dykstra splitting and an approximate proximal point algorithm for minimizing the sum of convex functions

C.H. Jeffrey Pang

arxiv:1709.09499 v1 · 2017-09-27 · 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{P5LPOIZBSNFWF7AYMTHEQYCDQB}

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	2026-05-18T00:34:11.538638Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f56f72321934b62fc1864ce486043806fc73e916db963a347ce0d473a1db562

Aliases

arxiv: 1709.09499 · arxiv_version: 1709.09499v1 · doi: 10.48550/arxiv.1709.09499 · pith_short_12: P5LPOIZBSNFW · pith_short_16: P5LPOIZBSNFWF7AY · pith_short_8: P5LPOIZB

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/P5LPOIZBSNFWF7AYMTHEQYCDQB \
  | 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: 7f56f72321934b62fc1864ce486043806fc73e916db963a347ce0d473a1db562

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2b5fcf8db08e8f538ff585b5631b2a21f1db2343d8c96e6483d0fd5f9a577a93",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2017-09-27T13:31:35Z",
    "title_canon_sha256": "18d4313ff0f518d387379bc40fd0f597732d957778e84b49f0cd2e78f4b055bf"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1709.09499",
    "kind": "arxiv",
    "version": 1
  }
}