Pith Number

pith:I7XHMPQD

pith:2013:I7XHMPQDO2354D7AVLZ4OYRD3H

not attested not anchored not stored refs pending

Recent Results on Douglas-Rachford Methods for Combinatorial Optimization Problems

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

arxiv:1305.2657 v1 · 2013-05-13 · math.OC · math.CO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{I7XHMPQDO2354D7AVLZ4OYRD3H}

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	2026-05-18T01:37:38.152839Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

47ee763e0376b7de0fe0aaf3c76223d9ddbfbe9c6fed1261e787099cfe4d3301

Aliases

arxiv: 1305.2657 · arxiv_version: 1305.2657v1 · doi: 10.48550/arxiv.1305.2657 · pith_short_12: I7XHMPQDO235 · pith_short_16: I7XHMPQDO2354D7A · pith_short_8: I7XHMPQD

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/I7XHMPQDO2354D7AVLZ4OYRD3H \
  | 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: 47ee763e0376b7de0fe0aaf3c76223d9ddbfbe9c6fed1261e787099cfe4d3301

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3fb1a36817dcc2eb4e95aa74174dae235178166314d155ef4bda880a9589ceff",
    "cross_cats_sorted": [
      "math.CO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2013-05-13T02:00:51Z",
    "title_canon_sha256": "55eea1109c9e6edea527be3d5d5fa138543d04024e0bba27b40fdbd3f90fcf0e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1305.2657",
    "kind": "arxiv",
    "version": 1
  }
}