Pith Number

pith:5S7N6IXJ

pith:2013:5S7N6IXJVHGJWHWPGC4XDOPFJ2

not attested not anchored not stored refs pending

A note on sparse least-squares regression

Christos Boutsidis, Malik Magdon-Ismail

arxiv:1312.7499 v1 · 2013-12-29 · 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{5S7N6IXJVHGJWHWPGC4XDOPFJ2}

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	2026-05-18T03:03:43.285694Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ecbedf22e9a9cc9b1ecf30b971b9e54ea20928da4dc876c0095ae7024de2ee6b

Aliases

arxiv: 1312.7499 · arxiv_version: 1312.7499v1 · doi: 10.48550/arxiv.1312.7499 · pith_short_12: 5S7N6IXJVHGJ · pith_short_16: 5S7N6IXJVHGJWHWP · pith_short_8: 5S7N6IXJ

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/5S7N6IXJVHGJWHWPGC4XDOPFJ2 \
  | 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: ecbedf22e9a9cc9b1ecf30b971b9e54ea20928da4dc876c0095ae7024de2ee6b

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2bdaac2bcf610e05d3a7172ecc107f3c1251966270da157ed559c07ce9ed832c",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.DS",
    "submitted_at": "2013-12-29T04:48:13Z",
    "title_canon_sha256": "50f02ec18a281eaa79e24614a6e5342e29dc0c353b3b7b52f8fca305ec344340"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1312.7499",
    "kind": "arxiv",
    "version": 1
  }
}