Pith Number

pith:JJSJMEHM

pith:2018:JJSJMEHMJFMQGR3GFLUMRFPSMO

not attested not anchored not stored refs pending

Why and How to Avoid the Flipped Quaternion Multiplication

Hannes Sommer, Igor Gilitschenski, Juan Nieto, Michael Bloesch, Roland Siegwart, Stephan Weiss

arxiv:1801.07478 v2 · 2018-01-23 · 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{JJSJMEHMJFMQGR3GFLUMRFPSMO}

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	2026-05-18T00:24:28.367867Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4a649610ec49590347662ae8c895f263b741c0c54dd0d0a79f330a6ea04dc55d

Aliases

arxiv: 1801.07478 · arxiv_version: 1801.07478v2 · doi: 10.48550/arxiv.1801.07478 · pith_short_12: JJSJMEHMJFMQ · pith_short_16: JJSJMEHMJFMQGR3G · pith_short_8: JJSJMEHM

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/JJSJMEHMJFMQGR3GFLUMRFPSMO \
  | 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: 4a649610ec49590347662ae8c895f263b741c0c54dd0d0a79f330a6ea04dc55d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e66785dcd19c9655b40556f3ac56abddfca83f46c597d4791f61f9cc8cc14ac4",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "cs.RO",
    "submitted_at": "2018-01-23T10:50:58Z",
    "title_canon_sha256": "5327451deda250d41a18abd1e538b4cef97dbd328f2109e6e59a64707cabc9c0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1801.07478",
    "kind": "arxiv",
    "version": 2
  }
}