Pith Number

pith:MG5U65ED

pith:2005:MG5U65EDICAJ32KAJZSEADQRO2

not attested not anchored not stored refs pending

Polar Polytopes and Recovery of Sparse Representations

Mark D. Plumbley

arxiv:cs/0510032 v1 · 2005-10-13 · 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{MG5U65EDICAJ32KAJZSEADQRO2}

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	2026-05-18T01:09:55.920885Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

61bb4f748340809de9404e64400e1176985c5d76b591c4a9b72e481f645485fb

Aliases

arxiv: cs/0510032 · arxiv_version: cs/0510032v1 · doi: 10.48550/arxiv.cs/0510032 · pith_short_12: MG5U65EDICAJ · pith_short_16: MG5U65EDICAJ32KA · pith_short_8: MG5U65ED

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/MG5U65EDICAJ32KAJZSEADQRO2 \
  | 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: 61bb4f748340809de9404e64400e1176985c5d76b591c4a9b72e481f645485fb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "593ca5b94b6319a1545b6b857b9ea32741f4ac482d5b5667be0ae788b5885758",
    "cross_cats_sorted": [
      "math.IT"
    ],
    "license": "",
    "primary_cat": "cs.IT",
    "submitted_at": "2005-10-13T14:41:15Z",
    "title_canon_sha256": "79f7424b56029b53c8e5a41315a9f0f6226827ce983211f550499774fdefc7c0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "cs/0510032",
    "kind": "arxiv",
    "version": 1
  }
}