Pith Number

pith:O3XQFBY6

pith:2012:O3XQFBY6COAILYZRNU5PYUUEFI

not attested not anchored not stored refs pending

Global convergence of a non-convex Douglas-Rachford iteration

Francisco J. Arag\'on Artacho, Jonathan M. Borwein

arxiv:1203.2392 v2 · 2012-03-12 · 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{O3XQFBY6COAILYZRNU5PYUUEFI}

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	2026-05-18T01:37:38.944638Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

76ef02871e138085e3316d3afc52842a19fbe9001824a363515a2c36c9d38a58

Aliases

arxiv: 1203.2392 · arxiv_version: 1203.2392v2 · doi: 10.48550/arxiv.1203.2392 · pith_short_12: O3XQFBY6COAI · pith_short_16: O3XQFBY6COAILYZR · pith_short_8: O3XQFBY6

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/O3XQFBY6COAILYZRNU5PYUUEFI \
  | 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: 76ef02871e138085e3316d3afc52842a19fbe9001824a363515a2c36c9d38a58

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "04ab0823e35af113805ce0996409392875a74712f6a2aa93b818791edbfdc31d",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2012-03-12T01:49:39Z",
    "title_canon_sha256": "21c5b0790484a7871872078acca1481282af07f652f4e98287ce23c2467fecc9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1203.2392",
    "kind": "arxiv",
    "version": 2
  }
}