Pith Number

pith:2QY63HYQ

pith:2017:2QY63HYQHZDU2H5IFUBJ7CEI5K

not attested not anchored not stored refs pending

Optimal Synthesis of Overconstrained 6R Linkages by Curve Evolution

Hans-Peter Schr\"ocker, Tudor-Dan Rad

arxiv:1702.00019 v2 · 2017-01-31 · 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{2QY63HYQHZDU2H5IFUBJ7CEI5K}

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	2026-05-18T00:48:59.384350Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d431ed9f103e474d1fa82d029f8888ea89ad9510f9349b71e5bd81b798871d2d

Aliases

arxiv: 1702.00019 · arxiv_version: 1702.00019v2 · doi: 10.48550/arxiv.1702.00019 · pith_short_12: 2QY63HYQHZDU · pith_short_16: 2QY63HYQHZDU2H5I · pith_short_8: 2QY63HYQ

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/2QY63HYQHZDU2H5IFUBJ7CEI5K \
  | 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: d431ed9f103e474d1fa82d029f8888ea89ad9510f9349b71e5bd81b798871d2d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "07fc42a93d47f92cd53263b0f087ebcfd16c224960f18a46e8ed65dd71482247",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.RO",
    "submitted_at": "2017-01-31T19:07:07Z",
    "title_canon_sha256": "d70f4e02e17371214d8f0f2d2b1c6eca24e1b269dc96a2cc1abce1e542e5ef73"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1702.00019",
    "kind": "arxiv",
    "version": 2
  }
}