Pith Number

pith:MSS5LLQP

pith:2017:MSS5LLQPJAL3WYJVAWEHXVCWTR

not attested not anchored not stored refs pending

Fixed-Rank Approximation of a Positive-Semidefinite Matrix from Streaming Data

Alp Yurtsever, Joel A. Tropp, Madeleine Udell, Volkan Cevher

arxiv:1706.05736 v1 · 2017-06-18 · cs.NA · cs.DS · 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{MSS5LLQPJAL3WYJVAWEHXVCWTR}

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	2026-05-18T00:42:09.045349Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

64a5d5ae0f4817bb613505887bd4569c6e292c113771be2fa3587bd0bed59cdd

Aliases

arxiv: 1706.05736 · arxiv_version: 1706.05736v1 · doi: 10.48550/arxiv.1706.05736 · pith_short_12: MSS5LLQPJAL3 · pith_short_16: MSS5LLQPJAL3WYJV · pith_short_8: MSS5LLQP

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/MSS5LLQPJAL3WYJVAWEHXVCWTR \
  | 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: 64a5d5ae0f4817bb613505887bd4569c6e292c113771be2fa3587bd0bed59cdd

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0608d0044cca69ad55de4357a8650c018aceb15a116b03ab16c5c99c99476c11",
    "cross_cats_sorted": [
      "cs.DS",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.NA",
    "submitted_at": "2017-06-18T22:13:45Z",
    "title_canon_sha256": "f17c09c09f6943d6869fa43a0c8348c316d61ab601d7b14a621c0e7ca02429f0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1706.05736",
    "kind": "arxiv",
    "version": 1
  }
}