Pith Number

pith:66DDJJLA

pith:2019:66DDJJLAIMRYMUM4UC6BGLQGVN

not attested not anchored not stored refs pending

Attitude Observer on SO(3) with Time-Varying Reference Directions

Dong Eui Chang, Kanishke Gamagedara, Taeyoung Lee

arxiv:1903.03826 v1 · 2019-03-09 · math.OC

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{66DDJJLAIMRYMUM4UC6BGLQGVN}

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	2026-05-17T23:51:40.852061Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f78634a560432386519ca0bc132e06ab6c94dc1490e41b6ab6292eb545eba567

Aliases

arxiv: 1903.03826 · arxiv_version: 1903.03826v1 · doi: 10.48550/arxiv.1903.03826 · pith_short_12: 66DDJJLAIMRY · pith_short_16: 66DDJJLAIMRYMUM4 · pith_short_8: 66DDJJLA

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/66DDJJLAIMRYMUM4UC6BGLQGVN \
  | 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: f78634a560432386519ca0bc132e06ab6c94dc1490e41b6ab6292eb545eba567

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "6baad498954ee5aaf50f51c2666e120348b3afcaa8a3bacf74ef4c42468144b0",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2019-03-09T16:43:54Z",
    "title_canon_sha256": "23b7b07a99d431a965387ef7ef78082bdcc93c46d4905f1b84d62e937cad989c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1903.03826",
    "kind": "arxiv",
    "version": 1
  }
}