Pith Number

pith:PY6A37OE

pith:2019:PY6A37OEYHQ2DX3QTR4PWFG3UK

not attested not anchored not stored refs pending

Minimax Adaptive Control for State Matrix with Unknown Sign

Anders Rantzer

arxiv:1912.03550 v4 · 2019-12-07 · 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{PY6A37OEYHQ2DX3QTR4PWFG3UK}

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	2026-07-05T01:32:42.597997Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7e3c0dfdc4c1e1a1df709c78fb14dba2a2e68a4d651f7090b9c8579b919b1b4e

Aliases

arxiv: 1912.03550 · arxiv_version: 1912.03550v4 · doi: 10.48550/arxiv.1912.03550 · pith_short_12: PY6A37OEYHQ2 · pith_short_16: PY6A37OEYHQ2DX3Q · pith_short_8: PY6A37OE

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/PY6A37OEYHQ2DX3QTR4PWFG3UK \
  | 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: 7e3c0dfdc4c1e1a1df709c78fb14dba2a2e68a4d651f7090b9c8579b919b1b4e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d0044874892d90ea01ec640b974932e5c5cbae682d9ca62fcbd821ad95664781",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2019-12-07T19:41:28Z",
    "title_canon_sha256": "ca067e8d465e258e00c7599dc40ac08767fb32cb1b0256b02a0f0fb7ed0e46df"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1912.03550",
    "kind": "arxiv",
    "version": 4
  }
}