Pith Number

pith:NI4ZKA2G

pith:2014:NI4ZKA2GS4A4DDVGWLBDUNHCTG

not attested not anchored not stored refs pending

Fast Iteratively Reweighted Least Squares Algorithms for Analysis-Based Sparsity Reconstruction

Chen Chen, Hongsheng Li, Junzhou Huang, Lei He

arxiv:1411.5057 v3 · 2014-11-18 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NI4ZKA2GS4A4DDVGWLBDUNHCTG}

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	2026-05-18T02:17:42.779650Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6a399503469701c18ea6b2c23a34e29996cad2dbc9940f8046ebcc0f7af165b2

Aliases

arxiv: 1411.5057 · arxiv_version: 1411.5057v3 · doi: 10.48550/arxiv.1411.5057 · pith_short_12: NI4ZKA2GS4A4 · pith_short_16: NI4ZKA2GS4A4DDVG · pith_short_8: NI4ZKA2G

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/NI4ZKA2GS4A4DDVGWLBDUNHCTG \
  | 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: 6a399503469701c18ea6b2c23a34e29996cad2dbc9940f8046ebcc0f7af165b2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a129477c04bc051efc84c824d7f784305a73453d064074f76572b19e0a70bbae",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2014-11-18T22:53:09Z",
    "title_canon_sha256": "118daaf5be3619b446bd40b467addfa9f2fefa990a8f780cb2f2a4bb9939747c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1411.5057",
    "kind": "arxiv",
    "version": 3
  }
}