Pith Number

pith:XFYKBNLY

pith:2015:XFYKBNLYY7PPL4UBCBHJEM6CIG

not attested not anchored not stored refs pending

Analysis on Non-negative Factorizations and Applications

Jun Zou, Kazufumi Ito, Yat Tin Chow

arxiv:1504.06068 v1 · 2015-04-23 · math.OC · 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{XFYKBNLYY7PPL4UBCBHJEM6CIG}

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	2026-05-18T02:18:02.698461Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b970a0b578c7def5f281104e9233c241acd2b0d17cd591625d88ca8302775099

Aliases

arxiv: 1504.06068 · arxiv_version: 1504.06068v1 · doi: 10.48550/arxiv.1504.06068 · pith_short_12: XFYKBNLYY7PP · pith_short_16: XFYKBNLYY7PPL4UB · pith_short_8: XFYKBNLY

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/XFYKBNLYY7PPL4UBCBHJEM6CIG \
  | 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: b970a0b578c7def5f281104e9233c241acd2b0d17cd591625d88ca8302775099

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8355756ec1e8eb25fb8095846e927cc7fc45c53893d0e1d538e95000b8756190",
    "cross_cats_sorted": [
      "math.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2015-04-23T07:47:50Z",
    "title_canon_sha256": "a1334fc18161e09c3328c1d1ad4e7f3c8273c4dbcc12da0a2d7b9e94819b652c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.06068",
    "kind": "arxiv",
    "version": 1
  }
}