Pith Number

pith:NUPELFOF

pith:2017:NUPELFOFYTTZCSFCMI6ZNI7OMG

not attested not anchored not stored refs pending

Alternate Derivation of Geometric Extended Kalman Filter by MEKF Approach

Lubin Chang

arxiv:1710.03949 v1 · 2017-10-11 · 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{NUPELFOFYTTZCSFCMI6ZNI7OMG}

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	2026-05-18T00:33:05.490190Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6d1e4595c5c4e79148a2623d96a3ee61b2ba16969a0d21ff3ea9e5a1334e2c39

Aliases

arxiv: 1710.03949 · arxiv_version: 1710.03949v1 · doi: 10.48550/arxiv.1710.03949 · pith_short_12: NUPELFOFYTTZ · pith_short_16: NUPELFOFYTTZCSFC · pith_short_8: NUPELFOF

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/NUPELFOFYTTZCSFCMI6ZNI7OMG \
  | 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: 6d1e4595c5c4e79148a2623d96a3ee61b2ba16969a0d21ff3ea9e5a1334e2c39

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a91b612e5d11d27357ba5b31e9c8053ec4f214c36dbf9f400a12d16c889e2a1e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.RO",
    "submitted_at": "2017-10-11T07:47:56Z",
    "title_canon_sha256": "2ea81796f28ff0540d0f3c42088d77a37792d46618bfd6769875f9f4f2a5ec7b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1710.03949",
    "kind": "arxiv",
    "version": 1
  }
}