Pith Number

pith:FL6ZE65V

pith:2013:FL6ZE65VELQMIU2S3QDDRNAV4W

not attested not anchored not stored refs pending

GURLS: a Least Squares Library for Supervised Learning

Andrea Tacchetti, Lorenzo Rosasco, Matteo Santoro, Pavan K Mallapragada

arxiv:1303.0934 v1 · 2013-03-05 · cs.LG · cs.AI · cs.MS

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FL6ZE65VELQMIU2S3QDDRNAV4W}

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	2026-05-18T03:31:53.425672Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2afd927bb522e0c45352dc0638b415e582efa686711c52c02dca27404b34d03c

Aliases

arxiv: 1303.0934 · arxiv_version: 1303.0934v1 · doi: 10.48550/arxiv.1303.0934 · pith_short_12: FL6ZE65VELQM · pith_short_16: FL6ZE65VELQMIU2S · pith_short_8: FL6ZE65V

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/FL6ZE65VELQMIU2S3QDDRNAV4W \
  | 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: 2afd927bb522e0c45352dc0638b415e582efa686711c52c02dca27404b34d03c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "08d8be1ac7bc28ec551d0ce06509df6edfdf97bec024f66894d876398fe788c0",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.MS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2013-03-05T05:55:59Z",
    "title_canon_sha256": "f973e946800a56db10c7b7c706d59f7f3021c56cc3bbc55f6ccd68bba631faed"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1303.0934",
    "kind": "arxiv",
    "version": 1
  }
}