Pith Number

pith:QWQAYHFA

pith:2017:QWQAYHFAIJOJKC2FTMOHB4Y43Z

not attested not anchored not stored refs pending

Exact recursive updating of uncertainty sets for discrete-time plants with a lag

robin hill, Yousong Luo

arxiv:1703.07946 v2 · 2017-03-23 · 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{QWQAYHFAIJOJKC2FTMOHB4Y43Z}

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	2026-05-18T00:33:32.192699Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

85a00c1ca0425c950b459b1c70f31cde681d1ca34bc0f4c945582816031c312d

Aliases

arxiv: 1703.07946 · arxiv_version: 1703.07946v2 · doi: 10.48550/arxiv.1703.07946 · pith_short_12: QWQAYHFAIJOJ · pith_short_16: QWQAYHFAIJOJKC2F · pith_short_8: QWQAYHFA

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/QWQAYHFAIJOJKC2FTMOHB4Y43Z \
  | 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: 85a00c1ca0425c950b459b1c70f31cde681d1ca34bc0f4c945582816031c312d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c594713b10208d89b9d4f4306d17428696f2540cd9e9d4af1ead5c6acb02d9d4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2017-03-23T06:44:31Z",
    "title_canon_sha256": "2dd759624dbbde05c53a78d613616fc38310c6d27cfddaf7d4d27ee8875bc932"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1703.07946",
    "kind": "arxiv",
    "version": 2
  }
}