Pith Number

pith:2I75ZC4R

pith:2020:2I75ZC4RHMH54EW2DBGB5ITNTG

not attested not anchored not stored refs pending

The Geometry and Kinematics of the Matrix Lie Group $SE_K(3)$

Chi Guo, Mengyuan Wang, Yarong Luo

arxiv:2012.00950 v4 · 2020-12-02 · cs.RO · math.GR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2I75ZC4RHMH54EW2DBGB5ITNTG}

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	2026-07-05T04:48:06.278284Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d23fdc8b913b0fde12da184c1ea26d9986dcfc162125cdb068f9b96f820697cb

Aliases

arxiv: 2012.00950 · arxiv_version: 2012.00950v4 · doi: 10.48550/arxiv.2012.00950 · pith_short_12: 2I75ZC4RHMH5 · pith_short_16: 2I75ZC4RHMH54EW2 · pith_short_8: 2I75ZC4R

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/2I75ZC4RHMH54EW2DBGB5ITNTG \
  | 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: d23fdc8b913b0fde12da184c1ea26d9986dcfc162125cdb068f9b96f820697cb

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d4d4256f7f7b8840ee33733a445b677259bf483115158f2a099ae10954c51e6e",
    "cross_cats_sorted": [
      "math.GR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.RO",
    "submitted_at": "2020-12-02T03:28:33Z",
    "title_canon_sha256": "978ad246d6264829baf86cf3ce214fb1bdff8369d544b18811add9d31a487ba1"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.00950",
    "kind": "arxiv",
    "version": 4
  }
}