Pith Number

pith:ILWZ3AC2

pith:2015:ILWZ3AC242D4WEBTRGNP6FGMDM

not attested not anchored not stored refs pending

The Douglas-Rachford algorithm in the affine-convex case

Heinz H. Bauschke, Minh N. Dao, Walaa M. Moursi

arxiv:1505.06408 v1 · 2015-05-24 · math.OC · cs.NA · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ILWZ3AC242D4WEBTRGNP6FGMDM}

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	2026-06-04T17:09:17.457775Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

42ed9d805ae687cb1033899aff14cc1b0dbf5966b7005bfded08d428ee1cfe20

Aliases

arxiv: 1505.06408 · arxiv_version: 1505.06408v1 · doi: 10.48550/arxiv.1505.06408 · pith_short_12: ILWZ3AC242D4 · pith_short_16: ILWZ3AC242D4WEBT · pith_short_8: ILWZ3AC2

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/ILWZ3AC242D4WEBTRGNP6FGMDM \
  | 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: 42ed9d805ae687cb1033899aff14cc1b0dbf5966b7005bfded08d428ee1cfe20

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4e6886867c72888a52c07ebdfecbdad4bfed5803994bc3e9a88949309667694a",
    "cross_cats_sorted": [
      "cs.NA",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2015-05-24T06:30:27Z",
    "title_canon_sha256": "405753908b6d2b2c4baeff7a7397ba4e61a8f6214be8c9cc27e12718ee16aae7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.06408",
    "kind": "arxiv",
    "version": 1
  }
}