Pith Number

pith:SJHZ46KT

pith:2019:SJHZ46KTEQINCXZGGPGBA2VOEM

not attested not anchored not stored refs pending

Confident Kernel Sparse Coding and Dictionary Learning

Babak Hosseini, Barbara Hammer

arxiv:1903.05219 v1 · 2019-03-12 · cs.LG · 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{SJHZ46KTEQINCXZGGPGBA2VOEM}

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	2026-05-17T23:51:25.075107Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

924f9e79532410d15f2633cc106aae230d60ae2db80a008af9c88212d820d339

Aliases

arxiv: 1903.05219 · arxiv_version: 1903.05219v1 · doi: 10.48550/arxiv.1903.05219 · pith_short_12: SJHZ46KTEQIN · pith_short_16: SJHZ46KTEQINCXZG · pith_short_8: SJHZ46KT

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/SJHZ46KTEQINCXZGGPGBA2VOEM \
  | 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: 924f9e79532410d15f2633cc106aae230d60ae2db80a008af9c88212d820d339

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3076db55d1c69ce66988db18405febdf24a89d24c71ec16b6b63aa12e60b0db7",
    "cross_cats_sorted": [
      "stat.ML"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.LG",
    "submitted_at": "2019-03-12T21:15:51Z",
    "title_canon_sha256": "e2a0ae484f1f0f3847bab66da36d6deaa0bfb77468cd9e837b6a277e3ec2cf46"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.05219",
    "kind": "arxiv",
    "version": 1
  }
}