Pith Number

pith:X3FMCQ3K

pith:2019:X3FMCQ3KI5DXQZE6KYAZGBJGD2

not attested not anchored not stored refs pending

Reachability-Based Safety Guarantees using Efficient Initializations

Claire J. Tomlin, Shromona Ghosh, Somil Bansal, Sylvia L. Herbert

arxiv:1903.07715 v1 · 2019-03-18 · 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{X3FMCQ3KI5DXQZE6KYAZGBJGD2}

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	2026-05-17T23:50:54.268559Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

becac1436a474778649e56019305261ea22e0915ac816e60c612d65c3b393685

Aliases

arxiv: 1903.07715 · arxiv_version: 1903.07715v1 · doi: 10.48550/arxiv.1903.07715 · pith_short_12: X3FMCQ3KI5DX · pith_short_16: X3FMCQ3KI5DXQZE6 · pith_short_8: X3FMCQ3K

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/X3FMCQ3KI5DXQZE6KYAZGBJGD2 \
  | 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: becac1436a474778649e56019305261ea22e0915ac816e60c612d65c3b393685

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "58f77e26f3653b1fa4c5b406061ac6c1f42882b403715b652aab1b98397db02e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.SY",
    "submitted_at": "2019-03-18T20:57:59Z",
    "title_canon_sha256": "b030a4f7a2da3f1428ee5591790c6cdab353df527a36965ea88635dc17b56371"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.07715",
    "kind": "arxiv",
    "version": 1
  }
}