Pith Number

pith:2EWTZ4BU

pith:2012:2EWTZ4BUBGUPEHNNYGLJKOCCST

not attested not anchored not stored refs pending

Sufficient and Necessary Conditions for the Solvability of the State Feedback Regulation Problem

H. Bouslous, L. Maniar, R. Saij, S. Boulite

arxiv:1207.3304 v1 · 2012-07-13 · 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{2EWTZ4BUBGUPEHNNYGLJKOCCST}

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	2026-05-18T03:51:02.741045Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d12d3cf03409a8f21dadc19695384294de56e4e61c1eeef93081a5697710cf74

Aliases

arxiv: 1207.3304 · arxiv_version: 1207.3304v1 · doi: 10.48550/arxiv.1207.3304 · pith_short_12: 2EWTZ4BUBGUP · pith_short_16: 2EWTZ4BUBGUPEHNN · pith_short_8: 2EWTZ4BU

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/2EWTZ4BUBGUPEHNNYGLJKOCCST \
  | 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: d12d3cf03409a8f21dadc19695384294de56e4e61c1eeef93081a5697710cf74

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7ccef595203e9ee8e2bfc35538acbf92575e2702c92f3a5772ceea42dd99efe2",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2012-07-13T17:02:22Z",
    "title_canon_sha256": "e8ac512428993e64e738be1e04e105c2b2c9d0b1c75c561e4572e8ad92b37173"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1207.3304",
    "kind": "arxiv",
    "version": 1
  }
}