Pith Number

pith:R2SCVKV4

pith:2014:R2SCVKV4FOAKRT7D5CYJEGSPBN

not attested not anchored not stored refs pending

Dictionary Learning and Tensor Decomposition via the Sum-of-Squares Method

Boaz Barak, David Steurer, Jonathan A. Kelner

arxiv:1407.1543 v2 · 2014-07-06 · cs.DS · cs.LG · 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{R2SCVKV4FOAKRT7D5CYJEGSPBN}

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	2026-05-18T02:38:19.717887Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8ea42aaabc2b80a8cfe3e8b0921a4f0b74e37757a4125b77b92fe262ac5b04d1

Aliases

arxiv: 1407.1543 · arxiv_version: 1407.1543v2 · doi: 10.48550/arxiv.1407.1543 · pith_short_12: R2SCVKV4FOAK · pith_short_16: R2SCVKV4FOAKRT7D · pith_short_8: R2SCVKV4

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/R2SCVKV4FOAKRT7D5CYJEGSPBN \
  | 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: 8ea42aaabc2b80a8cfe3e8b0921a4f0b74e37757a4125b77b92fe262ac5b04d1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "997b394496a0d919696c36a6aa226ca00d40d2281041ad8a72c4a775fe934f72",
    "cross_cats_sorted": [
      "cs.LG",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2014-07-06T20:42:05Z",
    "title_canon_sha256": "88c74aad521524bf91b9fde676549490ffaa14012c97d3b2cd9ce045b178650d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1407.1543",
    "kind": "arxiv",
    "version": 2
  }
}