Pith Number

pith:MDSU56DX

pith:2014:MDSU56DXNUNAPVAHRDYOAJIIYY

not attested not anchored not stored refs pending

Robust Block Coordinate Descent

Kimon Fountoulakis, Rachael Tappenden

arxiv:1407.7573 v3 · 2014-07-28 · 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{MDSU56DXNUNAPVAHRDYOAJIIYY}

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	2026-05-18T02:16:39.295614Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

60e54ef8776d1a07d40788f0e02508c61710e18e20f5822659d28842b7d0ad44

Aliases

arxiv: 1407.7573 · arxiv_version: 1407.7573v3 · doi: 10.48550/arxiv.1407.7573 · pith_short_12: MDSU56DXNUNA · pith_short_16: MDSU56DXNUNAPVAH · pith_short_8: MDSU56DX

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/MDSU56DXNUNAPVAHRDYOAJIIYY \
  | 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: 60e54ef8776d1a07d40788f0e02508c61710e18e20f5822659d28842b7d0ad44

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6bf7364044f9e8467b4926a292009121c79db60c48538d96d9e093baf401f720",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2014-07-28T21:15:26Z",
    "title_canon_sha256": "a16856cad21a5ec7ea6af38dae7dd419517c6980030e26fea82b708a983f9a0b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.7573",
    "kind": "arxiv",
    "version": 3
  }
}