Pith Number

pith:MGBUIWXW

pith:2015:MGBUIWXWBX6CYAJ6SHYKNCZ6C3

not attested not anchored not stored refs pending

Complete Dictionary Recovery over the Sphere II: Recovery by Riemannian Trust-region Method

John Wright, Ju Sun, Qing Qu

arxiv:1511.04777 v3 · 2015-11-15 · cs.IT · cs.CV · math.IT · math.OC · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MGBUIWXWBX6CYAJ6SHYKNCZ6C3}

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	2026-05-18T00:52:32.776853Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6183445af60dfc2c013e91f0a68b3e16cff0900ff9e621517da63bccb066aa22

Aliases

arxiv: 1511.04777 · arxiv_version: 1511.04777v3 · doi: 10.48550/arxiv.1511.04777 · pith_short_12: MGBUIWXWBX6C · pith_short_16: MGBUIWXWBX6CYAJ6 · pith_short_8: MGBUIWXW

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/MGBUIWXWBX6CYAJ6SHYKNCZ6C3 \
  | 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: 6183445af60dfc2c013e91f0a68b3e16cff0900ff9e621517da63bccb066aa22

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "99e67a60313f01b11117cdd33cfa630eaefc1407db08237ca0d2c5509bf53b82",
    "cross_cats_sorted": [
      "cs.CV",
      "math.IT",
      "math.OC",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2015-11-15T23:00:29Z",
    "title_canon_sha256": "fe009e946bf88c34f06545d3ca3a989781c6b70557a24b56f78837cf1f89dc24"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1511.04777",
    "kind": "arxiv",
    "version": 3
  }
}