Pith Number

pith:JRWJONXA

pith:2023:JRWJONXAG7XWODEYY3PRFUS4GJ

not attested not anchored not stored refs pending

Necessary and Sufficient Conditions for Simultaneous State and Input Recovery of Linear Systems with Sparse Inputs by $\ell_1$-Minimization

Enrique Mallada, Kyle Poe, Ren\'e Vidal

arxiv:2304.05526 v1 · 2023-04-11 · eess.SY · cs.IT · cs.SY · math.IT · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{JRWJONXAG7XWODEYY3PRFUS4GJ}

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	2026-07-05T06:00:19.895231Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4c6c9736e037ef670c98c6df12d25c324fd03a7e5ccce8eb8ebdad844edd4b97

Aliases

arxiv: 2304.05526 · arxiv_version: 2304.05526v1 · doi: 10.48550/arxiv.2304.05526 · pith_short_12: JRWJONXAG7XW · pith_short_16: JRWJONXAG7XWODEY · pith_short_8: JRWJONXA

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/JRWJONXAG7XWODEYY3PRFUS4GJ \
  | 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: 4c6c9736e037ef670c98c6df12d25c324fd03a7e5ccce8eb8ebdad844edd4b97

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8f72d2be1068170c337f67e78cf3def9adbaa1cd4bac1d3f82870b8b5c559afa",
    "cross_cats_sorted": [
      "cs.IT",
      "cs.SY",
      "math.IT",
      "math.OC"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "eess.SY",
    "submitted_at": "2023-04-11T22:40:38Z",
    "title_canon_sha256": "53e416e43246c461d22f7646126d6f2bc9cc949a0ae3fa1ace0e1e540f5d8113"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2304.05526",
    "kind": "arxiv",
    "version": 1
  }
}