Pith Number

pith:52Y2OBRO

pith:2018:52Y2OBRO4DTXMSI2J426CI2TUL

not attested not anchored not stored refs pending

Towards Learning Sparsely Used Dictionaries with Arbitrary Supports

Aravindan Vijayaraghavan, Pranjal Awasthi

arxiv:1804.08603 v2 · 2018-04-23 · cs.LG · cs.DS · stat.ML

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{52Y2OBRO4DTXMSI2J426CI2TUL}

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	2026-05-18T00:16:36.210804Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

eeb1a7062ee0e776491a4f35e12353a2ca7eb8a0284165f147ac9853f1d7bf28

Aliases

arxiv: 1804.08603 · arxiv_version: 1804.08603v2 · doi: 10.48550/arxiv.1804.08603 · pith_short_12: 52Y2OBRO4DTX · pith_short_16: 52Y2OBRO4DTXMSI2 · pith_short_8: 52Y2OBRO

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/52Y2OBRO4DTXMSI2J426CI2TUL \
  | 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: eeb1a7062ee0e776491a4f35e12353a2ca7eb8a0284165f147ac9853f1d7bf28

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bac3c1b4b37152342e91e9bfd803f89b4e06bfc112ffbb79938fce796564f5b2",
    "cross_cats_sorted": [
      "cs.DS",
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2018-04-23T17:57:33Z",
    "title_canon_sha256": "74c8975cbb6f271aadbf0d3b62b66e979c4fc53996f5541b78f2b738bd3626e6"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.08603",
    "kind": "arxiv",
    "version": 2
  }
}