Pith Number

pith:TAENIMSZ

pith:2019:TAENIMSZD6DKG7LKDRBG5ZIHZM

not attested not anchored not stored refs pending

A difference-of-convex approach for split feasibility with applications to matrix factorizations and outlier detection

Chen Chen, Liaoyuan Zeng, Lulin Tan, Ting Kei Pong

arxiv:1903.01101 v4 · 2019-03-04 · 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{TAENIMSZD6DKG7LKDRBG5ZIHZM}

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	2026-07-05T01:49:00.224297Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9808d432591f86a37d6a1c426ee507cb14dd472fa4ff53ea51bbd4d916629023

Aliases

arxiv: 1903.01101 · arxiv_version: 1903.01101v4 · doi: 10.48550/arxiv.1903.01101 · pith_short_12: TAENIMSZD6DK · pith_short_16: TAENIMSZD6DKG7LK · pith_short_8: TAENIMSZ

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/TAENIMSZD6DKG7LKDRBG5ZIHZM \
  | 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: 9808d432591f86a37d6a1c426ee507cb14dd472fa4ff53ea51bbd4d916629023

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e2d06df8ab0441bf4ccbd1878eb485953ddbc1af8b6dbad6326f1924cd94a13f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2019-03-04T07:32:48Z",
    "title_canon_sha256": "ea2959510eb448018128b3f7b189fa88d966da2b29a0206c68c030d0d4782527"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.01101",
    "kind": "arxiv",
    "version": 4
  }
}