Pith Number

pith:WLXWKWL2

pith:2021:WLXWKWL2XAE3SSDTAPZIHCD3LO

not attested not anchored not stored refs pending

Encrypted dynamic control with unlimited operating time via FIR filters

M. Neuhaus, M. Schulze Darup, N. Schl\"uter

arxiv:2112.02931 v1 · 2021-12-06 · 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{WLXWKWL2XAE3SSDTAPZIHCD3LO}

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	2026-07-05T03:37:59.507865Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b2ef65597ab809b9487303f283887b5b854b9083118f62cdbe496249662f4c64

Aliases

arxiv: 2112.02931 · arxiv_version: 2112.02931v1 · doi: 10.48550/arxiv.2112.02931 · pith_short_12: WLXWKWL2XAE3 · pith_short_16: WLXWKWL2XAE3SSDT · pith_short_8: WLXWKWL2

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/WLXWKWL2XAE3SSDTAPZIHCD3LO \
  | 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: b2ef65597ab809b9487303f283887b5b854b9083118f62cdbe496249662f4c64

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "98ac7e32b14b33e1c67c3398af836ecef1337ae92508ba380a87518e685d9e0f",
    "cross_cats_sorted": [
      "cs.SY"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "eess.SY",
    "submitted_at": "2021-12-06T11:07:42Z",
    "title_canon_sha256": "f78604efc06c09704e0da4068f7aba7846ad78988b849414f73e17127c0c67d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.02931",
    "kind": "arxiv",
    "version": 1
  }
}