Pith Number

pith:FYDMDBEL

pith:2018:FYDMDBEL3RCO6NQ2ER743S7SMP

not attested not anchored not stored refs pending

Multi-Layer Sparse Coding: The Holistic Way

Aviad Aberdam, Jeremias Sulam, Michael Elad

arxiv:1804.09788 v2 · 2018-04-25 · eess.IV · cs.LG · eess.SP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{FYDMDBEL3RCO6NQ2ER743S7SMP}

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	2026-05-18T00:09:52.322817Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2e06c1848bdc44ef361a247fcdcbf263f39714e457b1a12e5eeb07cdf3c8b00c

Aliases

arxiv: 1804.09788 · arxiv_version: 1804.09788v2 · doi: 10.48550/arxiv.1804.09788 · pith_short_12: FYDMDBEL3RCO · pith_short_16: FYDMDBEL3RCO6NQ2 · pith_short_8: FYDMDBEL

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/FYDMDBEL3RCO6NQ2ER743S7SMP \
  | 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: 2e06c1848bdc44ef361a247fcdcbf263f39714e457b1a12e5eeb07cdf3c8b00c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e7840d57434c1d5904068ddc18c1f7137b8ad47a367c4907f95f9c0a114e218e",
    "cross_cats_sorted": [
      "cs.LG",
      "eess.SP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.IV",
    "submitted_at": "2018-04-25T20:19:48Z",
    "title_canon_sha256": "bb32363b30a816c3c78cf93bcfb17896e2f4d702f00d1e18b2e7205a9d4f58b2"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1804.09788",
    "kind": "arxiv",
    "version": 2
  }
}