Pith Number

pith:PG54GSRK

pith:2018:PG54GSRKWCH7WHIY26HCKXUSKL

not attested not anchored not stored refs pending

Pass-Efficient Randomized Algorithms for Low-Rank Matrix Approximation Using Any Number of Views

Elvar K. Bjarkason

arxiv:1804.07531 v2 · 2018-04-20 · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PG54GSRKWCH7WHIY26HCKXUSKL}

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	2026-05-18T00:15:04.673275Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

79bbc34a2ab08ffb1d18d78e255e9252f0a582a42992c26956451baa301f1ebc

Aliases

arxiv: 1804.07531 · arxiv_version: 1804.07531v2 · doi: 10.48550/arxiv.1804.07531 · pith_short_12: PG54GSRKWCH7 · pith_short_16: PG54GSRKWCH7WHIY · pith_short_8: PG54GSRK

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/PG54GSRKWCH7WHIY26HCKXUSKL \
  | 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: 79bbc34a2ab08ffb1d18d78e255e9252f0a582a42992c26956451baa301f1ebc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "74df654700db49389e7918c3acdca42e822d165fa4d12d4e0202f55ce86aaca5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2018-04-20T10:10:10Z",
    "title_canon_sha256": "7c7de85082b67c3fd8d469cbf1519f3132b19305dc9f290e87c1e1a31ac32cc3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.07531",
    "kind": "arxiv",
    "version": 2
  }
}