Pith Number

pith:2ZADIIQT

pith:2018:2ZADIIQTGJ6KTWZAE6FWGKU6X2

not attested not anchored not stored refs pending

On Learning Sparsely Used Dictionaries from Incomplete Samples

Akshay Soni, Chinmay Hegde, Thanh V. Nguyen

arxiv:1804.09217 v1 · 2018-04-24 · stat.ML · 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{2ZADIIQTGJ6KTWZAE6FWGKU6X2}

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	2026-05-18T00:17:32.492326Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d640342213327ca9db20278b632a9ebe826c42242219a77d2c66ce3152fc277a

Aliases

arxiv: 1804.09217 · arxiv_version: 1804.09217v1 · doi: 10.48550/arxiv.1804.09217 · pith_short_12: 2ZADIIQTGJ6K · pith_short_16: 2ZADIIQTGJ6KTWZA · pith_short_8: 2ZADIIQT

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/2ZADIIQTGJ6KTWZAE6FWGKU6X2 \
  | 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: d640342213327ca9db20278b632a9ebe826c42242219a77d2c66ce3152fc277a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "73e999606daf160f22af8f78ec40e4b2f0bc6bd7b4240555ab0ab9527ed18d6f",
    "cross_cats_sorted": [
      "cs.LG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2018-04-24T19:06:50Z",
    "title_canon_sha256": "01d141dab83f1c1d0e43ee382acf27559ca92fbb88ece6d7bfa38587165a06c3"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.09217",
    "kind": "arxiv",
    "version": 1
  }
}