Pith Number

pith:7RHSIHPW

pith:2011:7RHSIHPWBPT5NH25RFBRTNIU7G

not attested not anchored not stored refs pending

An Alternating Direction Algorithm for Matrix Completion with Nonnegative Factors

Wotao Yin, Yangyang Xu, Yin Zhang, Zaiwen Wen

arxiv:1103.1168 v2 · 2011-03-06 · cs.IT · cs.NA · math.IT · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7RHSIHPWBPT5NH25RFBRTNIU7G}

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	2026-05-18T01:26:25.806279Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fc4f241df60be7d69f5d894319b514f98f38b48a9154324785c2a1d0daaa2a0e

Aliases

arxiv: 1103.1168 · arxiv_version: 1103.1168v2 · doi: 10.48550/arxiv.1103.1168 · pith_short_12: 7RHSIHPWBPT5 · pith_short_16: 7RHSIHPWBPT5NH25 · pith_short_8: 7RHSIHPW

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/7RHSIHPWBPT5NH25RFBRTNIU7G \
  | 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: fc4f241df60be7d69f5d894319b514f98f38b48a9154324785c2a1d0daaa2a0e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b039f8e60535ffa2557a6a5fadf4874d5e867edf9132841e356c73087e669979",
    "cross_cats_sorted": [
      "cs.NA",
      "math.IT",
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2011-03-06T22:27:52Z",
    "title_canon_sha256": "a6ab4c63f417669f3b26fac93a960c94021eeb83cad982b1c1afeb3bce3e565c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.1168",
    "kind": "arxiv",
    "version": 2
  }
}