Pith Number

pith:T6NE7PSD

pith:2019:T6NE7PSDWDDCRSSAATWAACLDB3

not attested not anchored not stored refs pending

Yet another approach to the Algebraic Riccati Inequality

A. Sanand Amita Dilip, Harish K. Pillai

arxiv:1902.11248 v1 · 2019-02-28 · 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{T6NE7PSDWDDCRSSAATWAACLDB3}

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	2026-05-17T23:52:25.105839Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

9f9a4fbe43b0c628ca4004ec0009630ec254c7e26f87f51a57c139c2a742d38d

Aliases

arxiv: 1902.11248 · arxiv_version: 1902.11248v1 · doi: 10.48550/arxiv.1902.11248 · pith_short_12: T6NE7PSDWDDC · pith_short_16: T6NE7PSDWDDCRSSA · pith_short_8: T6NE7PSD

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/T6NE7PSDWDDCRSSAATWAACLDB3 \
  | 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: 9f9a4fbe43b0c628ca4004ec0009630ec254c7e26f87f51a57c139c2a742d38d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "5a034d14fcff22cd3df66bb045ea83da89dbc1a7579d107ec60046dbd2a69c32",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2019-02-28T17:53:33Z",
    "title_canon_sha256": "2ba4d70bc500399a1fd1c93406022799c7c61572da5d63002327f2d18a412d80"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.11248",
    "kind": "arxiv",
    "version": 1
  }
}