Pith Number

pith:J7U7IL5H

pith:2019:J7U7IL5HPBOHMYPG6QGIPHES6A

not attested not anchored not stored refs pending

On the behaviour of the Douglas-Rachford algorithm for minimizing a convex function subject to a linear constraint

Heinz H. Bauschke, Walaa M. Moursi

arxiv:1908.05406 v2 · 2019-08-15 · math.OC

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Add to your LaTeX paper

\usepackage{pith}
\pithnumber{J7U7IL5HPBOHMYPG6QGIPHES6A}

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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	2026-07-05T01:17:24.669650Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4fe9f42fa7785c7661e6f40c879c92f024e1bebce4d8775354fb60d88f9d2f3d

Aliases

arxiv: 1908.05406 · arxiv_version: 1908.05406v2 · doi: 10.48550/arxiv.1908.05406 · pith_short_12: J7U7IL5HPBOH · pith_short_16: J7U7IL5HPBOHMYPG · pith_short_8: J7U7IL5H

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/J7U7IL5HPBOHMYPG6QGIPHES6A \
  | 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: 4fe9f42fa7785c7661e6f40c879c92f024e1bebce4d8775354fb60d88f9d2f3d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "544f342d5731c9a333b7f648915516da04e1efa82f27c45d3b98b7491a951277",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2019-08-15T03:41:06Z",
    "title_canon_sha256": "44f8517e1ba93ccaf97388a551c8ce000daab8e13c100e089adbb42abe6f0572"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.05406",
    "kind": "arxiv",
    "version": 2
  }
}