Pith Number

pith:HSVCSHCL

pith:2019:HSVCSHCLEQ6H6MLZ7G3HX3AIKY

not attested not anchored not stored refs pending

Orthogonal Matching Pursuit with Tikhonov and Landweber Regularization

Robert Seidel

arxiv:1902.07731 v1 · 2019-02-20 · cs.IT · math.IT

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HSVCSHCLEQ6H6MLZ7G3HX3AIKY}

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	2026-05-17T23:53:04.008836Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3caa291c4b243c7f3179f9b67bec085621f12171544cc661351078cb6bbaac0e

Aliases

arxiv: 1902.07731 · arxiv_version: 1902.07731v1 · doi: 10.48550/arxiv.1902.07731 · pith_short_12: HSVCSHCLEQ6H · pith_short_16: HSVCSHCLEQ6H6MLZ · pith_short_8: HSVCSHCL

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/HSVCSHCLEQ6H6MLZ7G3HX3AIKY \
  | 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: 3caa291c4b243c7f3179f9b67bec085621f12171544cc661351078cb6bbaac0e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "eab4cd86282565f28f34fe97b068d25af7f23edda42d9b1ff45749340f26177a",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2019-02-20T19:05:02Z",
    "title_canon_sha256": "35da9f318dcb3871eec644da58e6b2b9b895416b6141ffd9fcd9c3c8d21f75bd"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.07731",
    "kind": "arxiv",
    "version": 1
  }
}