Pith Number

pith:MWKIFXA7

pith:2021:MWKIFXA7W2FEK5UIHKISVXEFJD

not attested not anchored not stored refs pending

Learning Robotic Ultrasound Scanning Skills via Human Demonstrations and Guided Explorations

Fei Chen, Miao Li, Xutian Deng, Yiting Chen

arxiv:2111.01625 v1 · 2021-11-02 · cs.RO · cs.AI

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MWKIFXA7W2FEK5UIHKISVXEFJD}

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	2026-07-05T06:34:44.048284Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

659482dc1fb68a4576883a912adc8548f3b079c71f612b936a053a862b2a3181

Aliases

arxiv: 2111.01625 · arxiv_version: 2111.01625v1 · doi: 10.48550/arxiv.2111.01625 · pith_short_12: MWKIFXA7W2FE · pith_short_16: MWKIFXA7W2FEK5UI · pith_short_8: MWKIFXA7

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/MWKIFXA7W2FEK5UIHKISVXEFJD \
  | 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: 659482dc1fb68a4576883a912adc8548f3b079c71f612b936a053a862b2a3181

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e6a20fba7d3a8348f8a1ec168aac8aa1a830d3162abafaee8ea38323769f4a44",
    "cross_cats_sorted": [
      "cs.AI"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.RO",
    "submitted_at": "2021-11-02T14:38:09Z",
    "title_canon_sha256": "27c4504b73d1f6b5b3119c1e855a93e16747aeb26d9612274e78972f0f4bf1e9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2111.01625",
    "kind": "arxiv",
    "version": 1
  }
}