Pith Number

pith:7TYRKYJR

pith:2013:7TYRKYJRFPQ52ZU7YJIDIDIZU4

not attested not anchored not stored refs pending

Speeding-Up Convergence via Sequential Subspace Optimization: Current State and Future Directions

Michael Zibulevsky

arxiv:1401.0159 v1 · 2013-12-31 · cs.NA · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7TYRKYJRFPQ52ZU7YJIDIDIZU4}

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	2026-05-18T03:03:30.879107Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fcf11561312be1dd669fc250340d19a71bdc650ac44625d8e798b1bc57900eea

Aliases

arxiv: 1401.0159 · arxiv_version: 1401.0159v1 · doi: 10.48550/arxiv.1401.0159 · pith_short_12: 7TYRKYJRFPQ5 · pith_short_16: 7TYRKYJRFPQ52ZU7 · pith_short_8: 7TYRKYJR

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/7TYRKYJRFPQ52ZU7YJIDIDIZU4 \
  | 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: fcf11561312be1dd669fc250340d19a71bdc650ac44625d8e798b1bc57900eea

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "566710bcc62116ff888815adb035688c69849172cdfb13c166e7d9c6f53028ea",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NA",
    "submitted_at": "2013-12-31T15:25:50Z",
    "title_canon_sha256": "43c7900a401c87f680a00b1747c59137d426ce0c95e0baaeb21593285c797a06"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1401.0159",
    "kind": "arxiv",
    "version": 1
  }
}