Pith Number

pith:4TKXA2B5

pith:2023:4TKXA2B5W6TWVU4EOUTP2QUTK7

not attested not anchored not stored refs pending

The Safety Filter: A Unified View of Safety-Critical Control in Autonomous Systems

Haimin Hu, Jaime Fern\'andez Fisac, Kai-Chieh Hsu

arxiv:2309.05837 v1 · 2023-09-11 · eess.SY · cs.LG · cs.RO · 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{4TKXA2B5W6TWVU4EOUTP2QUTK7}

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	2026-07-05T06:49:47.599810Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e4d570683db7a76ad3847526fd429357fe092537c45ce59535dc46630199be49

Aliases

arxiv: 2309.05837 · arxiv_version: 2309.05837v1 · doi: 10.48550/arxiv.2309.05837 · pith_short_12: 4TKXA2B5W6TW · pith_short_16: 4TKXA2B5W6TWVU4E · pith_short_8: 4TKXA2B5

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/4TKXA2B5W6TWVU4EOUTP2QUTK7 \
  | 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: e4d570683db7a76ad3847526fd429357fe092537c45ce59535dc46630199be49

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f68c95fa676e3bb43df68258ab709e358a2ac95c2cc70ea8210a351678de1b89",
    "cross_cats_sorted": [
      "cs.LG",
      "cs.RO",
      "cs.SY"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-nd/4.0/",
    "primary_cat": "eess.SY",
    "submitted_at": "2023-09-11T21:34:16Z",
    "title_canon_sha256": "2aff24e9508e68d55cb66eaa5aac84a3433946c136bd13ff8e7f2fca897d8a5b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2309.05837",
    "kind": "arxiv",
    "version": 1
  }
}