Pith Number

pith:7JJQJCD3

pith:2017:7JJQJCD3U6IZUJBXCGOOV72WXU

not attested not anchored not stored refs pending

Block Coordinate Descent Only Converge to Minimizers

Enbin Song, Qingjiang Shi, Zhubin Shen

arxiv:1710.09047 v1 · 2017-10-25 · 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{7JJQJCD3U6IZUJBXCGOOV72WXU}

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	2026-05-18T00:32:00.488042Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fa5304887ba7919a2437119ceaff56bd1b6870fc36b9d41c739e4f0a7fa1ca65

Aliases

arxiv: 1710.09047 · arxiv_version: 1710.09047v1 · doi: 10.48550/arxiv.1710.09047 · pith_short_12: 7JJQJCD3U6IZ · pith_short_16: 7JJQJCD3U6IZUJBX · pith_short_8: 7JJQJCD3

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/7JJQJCD3U6IZUJBXCGOOV72WXU \
  | 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: fa5304887ba7919a2437119ceaff56bd1b6870fc36b9d41c739e4f0a7fa1ca65

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4f339e03f90cfaed46644683335043eaec24a8d4262fe8a6e6e7c4106b285e75",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2017-10-25T02:03:10Z",
    "title_canon_sha256": "d50f6ad054c9f53a7d130652ef89158aa1dbc5f7de3aa0cfda78f723cae13059"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.09047",
    "kind": "arxiv",
    "version": 1
  }
}