Pith Number

pith:GOMQ64UF

pith:2015:GOMQ64UFD2RWJKLZPHRCVCDTKX

not attested not anchored not stored refs pending

Compressing rank-structured matrices via randomized sampling

Per-Gunnar Martinsson

arxiv:1503.07152 v1 · 2015-03-24 · 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{GOMQ64UFD2RWJKLZPHRCVCDTKX}

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	2026-05-18T02:20:29.287236Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

33990f72851ea364a97979e22a887355f96b21f72b6ac9b6d2ffde56f27261e8

Aliases

arxiv: 1503.07152 · arxiv_version: 1503.07152v1 · doi: 10.48550/arxiv.1503.07152 · pith_short_12: GOMQ64UFD2RW · pith_short_16: GOMQ64UFD2RWJKLZ · pith_short_8: GOMQ64UF

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/GOMQ64UFD2RWJKLZPHRCVCDTKX \
  | 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: 33990f72851ea364a97979e22a887355f96b21f72b6ac9b6d2ffde56f27261e8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6aba1d43f7d932d9087fa4868b3e331851237891795d73e382f34196503cb9d6",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2015-03-24T19:49:50Z",
    "title_canon_sha256": "01ddaaafcfa2df22c1a3485026a1f5e75b06dfda920935854396d60b446432e0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.07152",
    "kind": "arxiv",
    "version": 1
  }
}