Pith Number

pith:A626BXPL

pith:2012:A626BXPLVNY5MM63EYV3EQS2XG

not attested not anchored not stored refs pending

Technical Report: Observability of a Linear System under Sparsity Constraints

Serdar Y\"uksel, Wei Dai

arxiv:1204.3097 v1 · 2012-04-13 · cs.IT · 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{A626BXPLVNY5MM63EYV3EQS2XG}

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	2026-05-18T03:57:52.625417Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

07b5e0ddebab71d633db262bb2425ab98d3f01a8d4851777e84d4ba9ae32d39d

Aliases

arxiv: 1204.3097 · arxiv_version: 1204.3097v1 · doi: 10.48550/arxiv.1204.3097 · pith_short_12: A626BXPLVNY5 · pith_short_16: A626BXPLVNY5MM63 · pith_short_8: A626BXPL

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/A626BXPLVNY5MM63EYV3EQS2XG \
  | 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: 07b5e0ddebab71d633db262bb2425ab98d3f01a8d4851777e84d4ba9ae32d39d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7f5e1dc103f4811734708d008070359a91ce5755e8187d87248ba318dd9ed766",
    "cross_cats_sorted": [
      "math.IT",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.IT",
    "submitted_at": "2012-04-13T20:07:32Z",
    "title_canon_sha256": "1581737bc4c4efd22229194ae18ad86bb32120440a55656ff27b5840b93b869d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1204.3097",
    "kind": "arxiv",
    "version": 1
  }
}