Pith Number

pith:ZBKH7YRG

pith:2019:ZBKH7YRGNXVJ4UEGETJ5XJS7VK

not attested not anchored not stored refs pending

Conditions for Unnecessary Logical Constraints in Kernel Machines

Francesco Giannini, Marco Maggini

arxiv:1909.00216 v2 · 2019-08-31 · cs.LO · cs.AI · cs.LG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZBKH7YRGNXVJ4UEGETJ5XJS7VK}

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	2026-07-05T00:06:56.973025Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c8547fe2266dea9e508624d3dba65faaa59688b663591e7ac81fb87083703669

Aliases

arxiv: 1909.00216 · arxiv_version: 1909.00216v2 · doi: 10.48550/arxiv.1909.00216 · pith_short_12: ZBKH7YRGNXVJ · pith_short_16: ZBKH7YRGNXVJ4UEG · pith_short_8: ZBKH7YRG

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/ZBKH7YRGNXVJ4UEGETJ5XJS7VK \
  | 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: c8547fe2266dea9e508624d3dba65faaa59688b663591e7ac81fb87083703669

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "355f8edb13be9dd9aa1e0e61436c097f3fe8e79e9d0dacaf267f6a71c0651dc7",
    "cross_cats_sorted": [
      "cs.AI",
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LO",
    "submitted_at": "2019-08-31T14:00:04Z",
    "title_canon_sha256": "e4971faf362ef93cb65062b03ef2441f6e2fe02c8ddf2cac9bcb44454b049be9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1909.00216",
    "kind": "arxiv",
    "version": 2
  }
}