Pith Number

pith:OHAGVSKJ

pith:2020:OHAGVSKJ5N52QLGTYBKAY7DY33

not attested not anchored not stored refs pending

Simplex-Structured Matrix Factorization: Sparsity-based Identifiability and Provably Correct Algorithms

Maryam Abdolali, Nicolas Gillis

arxiv:2007.11446 v1 · 2020-07-22 · cs.LG · eess.IV · eess.SP · 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{OHAGVSKJ5N52QLGTYBKAY7DY33}

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	2026-07-05T02:39:03.488811Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

71c06ac949eb7ba82cd3c0540c7c78defea2afa5459f162c9f16b1a98629392e

Aliases

arxiv: 2007.11446 · arxiv_version: 2007.11446v1 · doi: 10.48550/arxiv.2007.11446 · pith_short_12: OHAGVSKJ5N52 · pith_short_16: OHAGVSKJ5N52QLGT · pith_short_8: OHAGVSKJ

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/OHAGVSKJ5N52QLGTYBKAY7DY33 \
  | 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: 71c06ac949eb7ba82cd3c0540c7c78defea2afa5459f162c9f16b1a98629392e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6e4009aabdf8adbebeb7b840c4364e06e0f24898fe5fa2dc44e96c08697f6fcc",
    "cross_cats_sorted": [
      "eess.IV",
      "eess.SP",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2020-07-22T14:01:58Z",
    "title_canon_sha256": "d82918ab63e7369f8a81bc68e82fe27f8f59b2a59785151562cd4bf929d2f5a4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2007.11446",
    "kind": "arxiv",
    "version": 1
  }
}