Pith Number

pith:PNK3PXLM

pith:2019:PNK3PXLMEJFZYIFZA6SPEZ2EVB

not attested not anchored not stored refs pending

Reliable Real Time Ball Tracking for Robot Table Tennis

Bernhard Sch\"olkopf, Jan Peters, Sebastian Gomez-Gonzalez, Yassine Nemmour

arxiv:1908.07332 v1 · 2019-08-20 · 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{PNK3PXLMEJFZYIFZA6SPEZ2EVB}

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	2026-07-05T00:30:21.513736Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7b55b7dd6c224b9c20b907a4f26744a85f00e9d00bff9ccef3e97979431772b2

Aliases

arxiv: 1908.07332 · arxiv_version: 1908.07332v1 · doi: 10.48550/arxiv.1908.07332 · pith_short_12: PNK3PXLMEJFZ · pith_short_16: PNK3PXLMEJFZYIFZ · pith_short_8: PNK3PXLM

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/PNK3PXLMEJFZYIFZA6SPEZ2EVB \
  | 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: 7b55b7dd6c224b9c20b907a4f26744a85f00e9d00bff9ccef3e97979431772b2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "18d6a2629ef7f490e932fcd813dbb4be0b050bff269c7bb3bade7ea2605d86ac",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.RO",
    "submitted_at": "2019-08-20T13:35:16Z",
    "title_canon_sha256": "a19bfc50f98dfe7f8c9b03b6cb6cc8c896caedf124ce694173ddacc77165438e"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1908.07332",
    "kind": "arxiv",
    "version": 1
  }
}