Pith Number

pith:7EPEU2EY

pith:2015:7EPEU2EYIYO3GGIG2TGDHM55CI

not attested not anchored not stored refs pending

A Preliminary Study on the Learning Informativeness of Data Subsets

Dongheui Lee, Nicholas H. Kirk, Simon Kaltenbacher

arxiv:1510.04104 v1 · 2015-09-28 · cs.CL · cs.RO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{7EPEU2EYIYO3GGIG2TGDHM55CI}

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	2026-05-18T01:30:09.213933Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f91e4a6898461db31906d4cc33b3bd121d36b45083c325a7736e74041a5b8e4f

Aliases

arxiv: 1510.04104 · arxiv_version: 1510.04104v1 · doi: 10.48550/arxiv.1510.04104 · pith_short_12: 7EPEU2EYIYO3 · pith_short_16: 7EPEU2EYIYO3GGIG · pith_short_8: 7EPEU2EY

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/7EPEU2EYIYO3GGIG2TGDHM55CI \
  | 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: f91e4a6898461db31906d4cc33b3bd121d36b45083c325a7736e74041a5b8e4f

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2352a23454145307e050ddfa69b017a7a93b087fa6feb79762b3c92c7a9ddc4a",
    "cross_cats_sorted": [
      "cs.RO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CL",
    "submitted_at": "2015-09-28T15:21:00Z",
    "title_canon_sha256": "d44185a47f35b4af8f1fbf72fd328163261293e6b7f1671b91c1fc040c4d9639"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1510.04104",
    "kind": "arxiv",
    "version": 1
  }
}