Pith Number

pith:MRMDSAAD

pith:2024:MRMDSAADD3SENCC5MJDTTXLDXV

not attested not anchored not stored refs pending

Invertibility of Discrete-Time Linear Systems with Sparse Inputs

Enrique Mallada, Kyle Poe, Rene Vidal

arxiv:2403.20294 v1 · 2024-03-29 · math.OC · cs.SY · eess.SP · eess.SY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MRMDSAADD3SENCC5MJDTTXLDXV}

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	2026-07-05T08:02:17.221476Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

64583900031ee446885d624739dd63bd65a187fc76cb1409f91204478ede8296

Aliases

arxiv: 2403.20294 · arxiv_version: 2403.20294v1 · doi: 10.48550/arxiv.2403.20294 · pith_short_12: MRMDSAADD3SE · pith_short_16: MRMDSAADD3SENCC5 · pith_short_8: MRMDSAAD

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/MRMDSAADD3SENCC5MJDTTXLDXV \
  | 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: 64583900031ee446885d624739dd63bd65a187fc76cb1409f91204478ede8296

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e4ec64424b47b611378de4391e172f348c31e0bb9cf0061da9969c836d5dced8",
    "cross_cats_sorted": [
      "cs.SY",
      "eess.SP",
      "eess.SY"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2024-03-29T17:09:41Z",
    "title_canon_sha256": "aa87da302206a3daab4e35e014d0cfb72b098410e61777cb456b8d338857444f"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2403.20294",
    "kind": "arxiv",
    "version": 1
  }
}