Pith Number

pith:OEPLGH2U

pith:2008:OEPLGH2UL53RAYEZC3EJUMJ6C7

not attested not anchored not stored refs pending

Iteratively re-weighted least squares minimization for sparse recovery

C. Sinan Gunturk, Ingrid Daubechies, Massimo Fornasier, Ronald DeVore

arxiv:0807.0575 v1 · 2008-07-03 · math.NA · cs.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{OEPLGH2UL53RAYEZC3EJUMJ6C7}

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	2026-06-03T22:06:07.756709Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

711eb31f545f7710609916c89a313e17f52ae8ae055f401cfb29c6116728b973

Aliases

arxiv: 0807.0575 · arxiv_version: 0807.0575v1 · doi: 10.48550/arxiv.0807.0575 · pith_short_12: OEPLGH2UL53R · pith_short_16: OEPLGH2UL53RAYEZ · pith_short_8: OEPLGH2U

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/OEPLGH2UL53RAYEZC3EJUMJ6C7 \
  | 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: 711eb31f545f7710609916c89a313e17f52ae8ae055f401cfb29c6116728b973

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "494163f9fb6f5d088356c7decd227e11b1e4def978ad2c77dc9234a2c8f0f489",
    "cross_cats_sorted": [
      "cs.NA"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2008-07-03T14:40:23Z",
    "title_canon_sha256": "6bb0465f52afa124f157b28cb15c7ecffdc061ce6a67c6d5b10d43bcf5b32588"
  },
  "schema_version": "1.0",
  "source": {
    "id": "0807.0575",
    "kind": "arxiv",
    "version": 1
  }
}