Pith Number

pith:P6D75SXP

pith:2021:P6D75SXPJQXE757C74V2QLTHPH

not attested not anchored not stored refs pending

NNK-Means: Data summarization using dictionary learning with non-negative kernel regression

Antonio Ortega, Sarath Shekkizhar

arxiv:2110.08212 v2 · 2021-10-15 · 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{P6D75SXPJQXE757C74V2QLTHPH}

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.

Cited by

1 paper in Pith

Efficient Out-of-Scope Detection in Dialogue Systems via Uncertainty-Driven LLM Routing

Receipt and verification

First computed	2026-07-05T04:31:11.282629Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7f87fecaef4c2e4ff7e2ff2ba82e6779e47e38dd33217256638e834cf58698aa

Aliases

arxiv: 2110.08212 · arxiv_version: 2110.08212v2 · doi: 10.48550/arxiv.2110.08212 · pith_short_12: P6D75SXPJQXE · pith_short_16: P6D75SXPJQXE757C · pith_short_8: P6D75SXP

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/P6D75SXPJQXE757C74V2QLTHPH \
  | 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: 7f87fecaef4c2e4ff7e2ff2ba82e6779e47e38dd33217256638e834cf58698aa

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7e26058137aa8d861d50a048aace8458fd0826d49ddb4f5ba1c1f4ef89537b9f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2021-10-15T17:17:55Z",
    "title_canon_sha256": "ff643a0f0edcf437bc76662a1d1f73a86910d3c11a59f985ff82d62e80b27cf6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2110.08212",
    "kind": "arxiv",
    "version": 2
  }
}