Pith Number

pith:4SDZZR6V

pith:2013:4SDZZR6V23L2633F3ZM2YLSHWO

not attested not anchored not stored refs pending

An Enhanced Features Extractor for a Portfolio of Constraint Solvers

Jacopo Mauro, Maurizio Gabbrielli, Roberto Amadini

arxiv:1308.0227 v7 · 2013-08-01 · 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{4SDZZR6V23L2633F3ZM2YLSHWO}

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	2026-05-18T02:55:04.041706Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e4879cc7d5d6d7af6f65de59ac2e47b392365c37dadb8e3f8adc8c3cd64a2f46

Aliases

arxiv: 1308.0227 · arxiv_version: 1308.0227v7 · doi: 10.48550/arxiv.1308.0227 · pith_short_12: 4SDZZR6V23L2 · pith_short_16: 4SDZZR6V23L2633F · pith_short_8: 4SDZZR6V

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/4SDZZR6V23L2633F3ZM2YLSHWO \
  | 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: e4879cc7d5d6d7af6f65de59ac2e47b392365c37dadb8e3f8adc8c3cd64a2f46

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a1a47cb5c41992e4878b2fc3a0abeb13c63b87e97cafd0348d2ea4ce7fcc00b5",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.AI",
    "submitted_at": "2013-08-01T14:40:14Z",
    "title_canon_sha256": "ab0186a416fcecace653498d79aa605d13bf076243e72d281affa63ba13c7577"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1308.0227",
    "kind": "arxiv",
    "version": 7
  }
}