Pith Number

pith:PQRT2OS3

pith:2021:PQRT2OS3QQITGRR7A4EZWAZYLJ

not attested not anchored not stored refs pending

Safe Reinforcement Learning using Formal Verification for Tissue Retraction in Autonomous Robotic-Assisted Surgery

Alessandro Farinelli, Alicia Casals, Ameya Pore, Davide Corsi, Diego Dall'Alba, Enrico Marchesini, Paolo Fiorini

arxiv:2109.02323 v1 · 2021-09-06 · cs.RO

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{PQRT2OS3QQITGRR7A4EZWAZYLJ}

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	2026-07-05T03:11:41.192533Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7c233d3a5b841133463f07099b03385a4dd00467d8eae3351d467908fe1bd27a

Aliases

arxiv: 2109.02323 · arxiv_version: 2109.02323v1 · doi: 10.48550/arxiv.2109.02323 · pith_short_12: PQRT2OS3QQIT · pith_short_16: PQRT2OS3QQITGRR7 · pith_short_8: PQRT2OS3

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/PQRT2OS3QQITGRR7A4EZWAZYLJ \
  | 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: 7c233d3a5b841133463f07099b03385a4dd00467d8eae3351d467908fe1bd27a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7c8f0be26becd6b682305fc93bfbda5b8e7f2a21cd29d7eaec56b6ed315d1242",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.RO",
    "submitted_at": "2021-09-06T09:49:00Z",
    "title_canon_sha256": "2f4d4804ad2f62ae701029495c11c21a68c5a8d012455ad1dc52e0c41f2793f7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.02323",
    "kind": "arxiv",
    "version": 1
  }
}