Pith Number

pith:3D5NZF7D

pith:2015:3D5NZF7DOUF33XD6TYBZIKYKSO

not attested not anchored not stored refs pending

Randomized Block Krylov Methods for Stronger and Faster Approximate Singular Value Decomposition

Cameron Musco, Christopher Musco

arxiv:1504.05477 v4 · 2015-04-21 · cs.DS · cs.LG · cs.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{3D5NZF7DOUF33XD6TYBZIKYKSO}

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	2026-05-18T01:28:25.715095Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d8fadc97e3750bbddc7e9e03942b0a93811660cc6ed5c20516a248c96246817d

Aliases

arxiv: 1504.05477 · arxiv_version: 1504.05477v4 · doi: 10.48550/arxiv.1504.05477 · pith_short_12: 3D5NZF7DOUF3 · pith_short_16: 3D5NZF7DOUF33XD6 · pith_short_8: 3D5NZF7D

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/3D5NZF7DOUF33XD6TYBZIKYKSO \
  | 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: d8fadc97e3750bbddc7e9e03942b0a93811660cc6ed5c20516a248c96246817d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2e4f1ee54fe12588e955fa8a63384ab7226ba32176d86e694d6e3b60393ab19f",
    "cross_cats_sorted": [
      "cs.LG",
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2015-04-21T15:48:44Z",
    "title_canon_sha256": "7f362566fb6675cbb299ee0a06108aaa80e92f2df41ea8a04e0e63c42f34ea9c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.05477",
    "kind": "arxiv",
    "version": 4
  }
}