Pith Number

pith:PCYPB6UE

pith:2015:PCYPB6UEX3EXO7ISBOT5OTASZQ

not attested not anchored not stored refs pending

A Randomized Algorithm for Approximating the Log Determinant of a Symmetric Positive Definite Matrix

Anastasios Zouzias, Christos Boutsidis, Eugenia-Maria Kontopoulou, Petros Drineas, Prabhanjan Kambadur

arxiv:1503.00374 v2 · 2015-03-01 · cs.DS

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PCYPB6UEX3EXO7ISBOT5OTASZQ}

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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	2026-05-18T01:06:41.157590Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

78b0f0fa84bec9777d120ba7d74c12cc107c5e6c1c0371ed1ab42ad734f4e515

Aliases

arxiv: 1503.00374 · arxiv_version: 1503.00374v2 · doi: 10.48550/arxiv.1503.00374 · pith_short_12: PCYPB6UEX3EX · pith_short_16: PCYPB6UEX3EXO7IS · pith_short_8: PCYPB6UE

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/PCYPB6UEX3EXO7ISBOT5OTASZQ \
  | 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: 78b0f0fa84bec9777d120ba7d74c12cc107c5e6c1c0371ed1ab42ad734f4e515

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2514a99c45930eaba69c6cb4d5463f71e4a92521176f52b4219511e9b25b49bf",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2015-03-01T23:25:13Z",
    "title_canon_sha256": "644f32ffe1cc49a320f114676c9c3bda74862a774f365b0301c69d0a96523f99"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.00374",
    "kind": "arxiv",
    "version": 2
  }
}