Pith Number

pith:OVXWSQ3K

pith:2015:OVXWSQ3KGO7GOXZSSB63K5CEMV

not attested not anchored not stored refs pending

Local identifiability of $l_1$-minimization dictionary learning: a sufficient and almost necessary condition

Bin Yu, Siqi Wu

arxiv:1505.04363 v2 · 2015-05-17 · 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{OVXWSQ3KGO7GOXZSSB63K5CEMV}

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	2026-05-18T01:11:13.513670Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

756f69436a33be675f32907db57444657c076ea23d70688d305c4fa889386ac1

Aliases

arxiv: 1505.04363 · arxiv_version: 1505.04363v2 · doi: 10.48550/arxiv.1505.04363 · pith_short_12: OVXWSQ3KGO7G · pith_short_16: OVXWSQ3KGO7GOXZS · pith_short_8: OVXWSQ3K

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/OVXWSQ3KGO7GOXZSSB63K5CEMV \
  | 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: 756f69436a33be675f32907db57444657c076ea23d70688d305c4fa889386ac1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bc5f1fed9c4a8341ccb76244ca8aece4d1a65fe1c6fc1c4ec8fc5f8051335428",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "stat.ML",
    "submitted_at": "2015-05-17T07:05:50Z",
    "title_canon_sha256": "17931da2d723b4b8c409c69cff07380c0a04d43a8983274d8fa021afb0a7b921"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1505.04363",
    "kind": "arxiv",
    "version": 2
  }
}