Pith Number

pith:UZDQQDYF

pith:2026:UZDQQDYFHWJYZY7YFLHXNBJS6G

not attested not anchored not stored refs pending

Model-Free Control approach for pH Regulation in Thin-Layer Photobioreactors

Ainoa Morillas-Espa\~na, Alain Vande Wouwer, Jos\'e Carlos Moreno, Jos\'e Gonz\'alez-Hern\'andez, Jos\'e Luis Guzm\'an

arxiv:2605.25105 v1 · 2026-05-24 · eess.SY · cs.SY

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{UZDQQDYFHWJYZY7YFLHXNBJS6G}

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	2026-05-26T02:04:18.144376Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a647080f053d938ce3f82acf768532f186264f3fc58b1cfadb0e2bf989831f93

Aliases

arxiv: 2605.25105 · arxiv_version: 2605.25105v1 · doi: 10.48550/arxiv.2605.25105 · pith_short_12: UZDQQDYFHWJY · pith_short_16: UZDQQDYFHWJYZY7Y · pith_short_8: UZDQQDYF

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/UZDQQDYFHWJYZY7YFLHXNBJS6G \
  | 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: a647080f053d938ce3f82acf768532f186264f3fc58b1cfadb0e2bf989831f93

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d5a3c23e88c3f540524e1923c5c58a0b47c2ae8c31ba44d6d9787cf5b34cfd20",
    "cross_cats_sorted": [
      "cs.SY"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "eess.SY",
    "submitted_at": "2026-05-24T14:47:36Z",
    "title_canon_sha256": "ad972f6f10c560b33dc71b84f67f20f1fd5b866afe67add58c8e16e89d99c14b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2605.25105",
    "kind": "arxiv",
    "version": 1
  }
}