Pith Number

pith:4Y747Q6M

pith:2018:4Y747Q6MV7XQNPN75DXNJJR2KK

not attested not anchored not stored refs pending

Quadric Inclusion Programs: an LMI Approach to H[infinity]-Model Identification

Gray C. Thomas, Luis Sentis

arxiv:1802.07695 v4 · 2018-02-21 · math.OC · cs.SY · math.DS

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4Y747Q6MV7XQNPN75DXNJJR2KK}

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	2026-05-17T23:56:58.676046Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e63fcfc3ccafef06bdbfe8eed4a63a52bfb9b6567790762ff180fac25fa1f8c8

Aliases

arxiv: 1802.07695 · arxiv_version: 1802.07695v4 · doi: 10.48550/arxiv.1802.07695 · pith_short_12: 4Y747Q6MV7XQ · pith_short_16: 4Y747Q6MV7XQNPN7 · pith_short_8: 4Y747Q6M

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/4Y747Q6MV7XQNPN75DXNJJR2KK \
  | 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: e63fcfc3ccafef06bdbfe8eed4a63a52bfb9b6567790762ff180fac25fa1f8c8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a0cb27222ade952585ef8503e16ccc6c4bdf99bb9170e6b059f3b078a384f3dc",
    "cross_cats_sorted": [
      "cs.SY",
      "math.DS"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2018-02-21T17:53:25Z",
    "title_canon_sha256": "49c21e8975fd23a5609a931bf3adaa4e81a943de46ae2e1cfa5d8c05bf79b488"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1802.07695",
    "kind": "arxiv",
    "version": 4
  }
}