Pith Number

pith:7IQWXIFF

pith:2022:7IQWXIFFLE3ERY5U64ZOZAXFLS

not attested not anchored not stored refs pending

A Structured Optimal Controller for Irrigation Networks

Anders Rantzer, Martin Heyden, Richard Pates

arxiv:2203.16575 v1 · 2022-03-30 · 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{7IQWXIFFLE3ERY5U64ZOZAXFLS}

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	2026-07-05T04:10:13.817528Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fa216ba0a5593648e3b4f732ec82e55c806be01e4fc1de7d3739f05eb746e6b6

Aliases

arxiv: 2203.16575 · arxiv_version: 2203.16575v1 · doi: 10.48550/arxiv.2203.16575 · pith_short_12: 7IQWXIFFLE3E · pith_short_16: 7IQWXIFFLE3ERY5U · pith_short_8: 7IQWXIFF

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/7IQWXIFFLE3ERY5U64ZOZAXFLS \
  | 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: fa216ba0a5593648e3b4f732ec82e55c806be01e4fc1de7d3739f05eb746e6b6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "de8ab07f5d9b94f2aadf19d34e0e49a0f78aae9e74d3bc37fcb15fcb38db1311",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2022-03-30T18:07:34Z",
    "title_canon_sha256": "070564b0159228e638dc719196089177e0acb4421357b099a3611de4db2ef05a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2203.16575",
    "kind": "arxiv",
    "version": 1
  }
}