Pith Number

pith:ABM7OPDY

pith:2015:ABM7OPDYPDE3X5YXR7KTMWK567

not attested not anchored not stored refs pending

Online Matrix Factorization via Broyden Updates

\"Omer Deniz Aky{\i}ld{\i}z

arxiv:1506.04389 v2 · 2015-06-14 · 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{ABM7OPDYPDE3X5YXR7KTMWK567}

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	2026-05-18T01:37:48.743130Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0059f73c7878c9bbf7178fd536595df7c3d4de9fe52cd819d37c7de91cf44ca0

Aliases

arxiv: 1506.04389 · arxiv_version: 1506.04389v2 · doi: 10.48550/arxiv.1506.04389 · pith_short_12: ABM7OPDYPDE3 · pith_short_16: ABM7OPDYPDE3X5YX · pith_short_8: ABM7OPDY

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/ABM7OPDYPDE3X5YXR7KTMWK567 \
  | 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: 0059f73c7878c9bbf7178fd536595df7c3d4de9fe52cd819d37c7de91cf44ca0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b24df0371fc1b0fc8d4c33975591fc2c7c309b4080a7c249ad9e5f048a66f6f1",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2015-06-14T13:19:38Z",
    "title_canon_sha256": "26e641a277d81279871335034ffcb621e88d16c9f62d0e4cf020ba5768310117"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1506.04389",
    "kind": "arxiv",
    "version": 2
  }
}