Pith Number

pith:L4I4S3GD

pith:2013:L4I4S3GD7MGTLBC2TQJ6UQWZEC

not attested not anchored not stored refs pending

A Classification of Configuration Spaces of Planar Robot Arms with Application to a Continuous Inverse Kinematics Problem

Mihail Pivtoraiko, Subhrajit Bhattacharya

arxiv:1309.7960 v2 · 2013-09-30 · math.DG · 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{L4I4S3GD7MGTLBC2TQJ6UQWZEC}

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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	2026-05-18T02:43:54.242998Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5f11c96cc3fb0d35845a9c13ea42d920a35716b2cf91fc23e7de8f8c17f226f7

Aliases

arxiv: 1309.7960 · arxiv_version: 1309.7960v2 · doi: 10.48550/arxiv.1309.7960 · pith_short_12: L4I4S3GD7MGT · pith_short_16: L4I4S3GD7MGTLBC2 · pith_short_8: L4I4S3GD

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/L4I4S3GD7MGTLBC2TQJ6UQWZEC \
  | 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: 5f11c96cc3fb0d35845a9c13ea42d920a35716b2cf91fc23e7de8f8c17f226f7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "13602bb5589ddc2e0cb53a76413d78d5bb5b8706e6ae8cc29e5b702804f3b86e",
    "cross_cats_sorted": [
      "cs.RO"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.DG",
    "submitted_at": "2013-09-30T18:57:32Z",
    "title_canon_sha256": "305ada19d7edadcf71aa4dcd2c5e1dd08fcc91436ee266c8808ce91e1eed452d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1309.7960",
    "kind": "arxiv",
    "version": 2
  }
}