Pith Number

pith:YFLGQIXD

pith:2015:YFLGQIXDZJHLHGCNW6IVSYIN5G

not attested not anchored not stored refs pending

On the order of the operators in the Douglas-Rachford algorithm

Heinz H. Bauschke, Walaa M. Moursi

arxiv:1505.02796 v1 · 2015-05-11 · math.OC · 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{YFLGQIXDZJHLHGCNW6IVSYIN5G}

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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	2026-05-18T02:14:16.082475Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c1566822e3ca4eb3984db79159610de9bba6ca42bea27f7d9a7810e5733cb4b9

Aliases

arxiv: 1505.02796 · arxiv_version: 1505.02796v1 · doi: 10.48550/arxiv.1505.02796 · pith_short_12: YFLGQIXDZJHL · pith_short_16: YFLGQIXDZJHLHGCN · pith_short_8: YFLGQIXD

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/YFLGQIXDZJHLHGCNW6IVSYIN5G \
  | 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: c1566822e3ca4eb3984db79159610de9bba6ca42bea27f7d9a7810e5733cb4b9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7c112707b9cbd65948ddce515ab3a6a00e2230e873249e85df5a0fd1d6e380df",
    "cross_cats_sorted": [
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2015-05-11T20:24:58Z",
    "title_canon_sha256": "1123ea24132c53b7678afddd15c1c23883a65d1a87b642c2c64f532c8f221367"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.02796",
    "kind": "arxiv",
    "version": 1
  }
}