Pith Number

pith:WB7UH6V3

pith:2017:WB7UH6V3Q2WQ4RODWPM3KKENYW

not attested not anchored not stored refs pending

Hyperbolic pseudoinverses for kinematics in the Euclidean group

J. M. Selig, P. Donelan

arxiv:1711.07560 v1 · 2017-11-20 · math.MG · cs.CG

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{WB7UH6V3Q2WQ4RODWPM3KKENYW}

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	2026-05-18T00:29:58.705091Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b07f43fabb86ad0e45c3b3d9b5288dc5ab86f009b385ca89a7774337df52057d

Aliases

arxiv: 1711.07560 · arxiv_version: 1711.07560v1 · doi: 10.48550/arxiv.1711.07560 · pith_short_12: WB7UH6V3Q2WQ · pith_short_16: WB7UH6V3Q2WQ4ROD · pith_short_8: WB7UH6V3

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/WB7UH6V3Q2WQ4RODWPM3KKENYW \
  | 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: b07f43fabb86ad0e45c3b3d9b5288dc5ab86f009b385ca89a7774337df52057d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "bacd80d9cdec969ad21ea4d1e6ac07d715b1219461f77e7937b99dc9fd217b43",
    "cross_cats_sorted": [
      "cs.CG"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.MG",
    "submitted_at": "2017-11-20T21:50:20Z",
    "title_canon_sha256": "dabec67f5e6cb387d437311629eabff1e7f2423861b0121b531b8a4ddd80e17a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1711.07560",
    "kind": "arxiv",
    "version": 1
  }
}