Pith Number

pith:2FQK5SU3

pith:2019:2FQK5SU33VJCIKKXSFRIIF77SL

not attested not anchored not stored refs pending

Optimization-based Feedback Manipulation Through an Array of Ultrasonic Transducers

Adam Kollar\v{c}\'ik, Josef Matou\v{s}, Martin Gurtner, Tom\'a\v{s} Mich\'alek, Zden\v{e}k Hur\'ak

arxiv:1902.01328 v4 · 2019-02-04 · 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{2FQK5SU33VJCIKKXSFRIIF77SL}

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	2026-06-04T20:13:51.677739Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d160aeca9bdd5224295791628417ff92e95183b26c1b1a1e7b6cfe8b1571cbfc

Aliases

arxiv: 1902.01328 · arxiv_version: 1902.01328v4 · doi: 10.48550/arxiv.1902.01328 · pith_short_12: 2FQK5SU33VJC · pith_short_16: 2FQK5SU33VJCIKKX · pith_short_8: 2FQK5SU3

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/2FQK5SU33VJCIKKXSFRIIF77SL \
  | 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: d160aeca9bdd5224295791628417ff92e95183b26c1b1a1e7b6cfe8b1571cbfc

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b47e4d237be8f05aa16302d8f261720780f833af3578fa6a0283b728e4b50e46",
    "cross_cats_sorted": [
      "cs.SY"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "eess.SY",
    "submitted_at": "2019-02-04T17:31:54Z",
    "title_canon_sha256": "3d12c109ba0d5a446a3f1089743ba9b7da8d49e98a832ad5786edf14c036667b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.01328",
    "kind": "arxiv",
    "version": 4
  }
}