Pith Number

pith:2ZY33JJR

pith:2017:2ZY33JJRRQU7E4SOBUYLKP25IC

not attested not anchored not stored refs pending

Least square ellipsoid fitting using iterative orthogonal transformations

Amit Reza, Anand S. Sengupta

arxiv:1704.04877 v3 · 2017-04-17 · cs.CV

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{2ZY33JJRRQU7E4SOBUYLKP25IC}

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	2026-05-18T00:39:35.793711Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d671bda5318c29f2724e0d30b53f5d40bb46c2e0f12e6961da4d6626afd5e783

Aliases

arxiv: 1704.04877 · arxiv_version: 1704.04877v3 · doi: 10.48550/arxiv.1704.04877 · pith_short_12: 2ZY33JJRRQU7 · pith_short_16: 2ZY33JJRRQU7E4SO · pith_short_8: 2ZY33JJR

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/2ZY33JJRRQU7E4SOBUYLKP25IC \
  | 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: d671bda5318c29f2724e0d30b53f5d40bb46c2e0f12e6961da4d6626afd5e783

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "40ed238b0127042a172fe400ffcc55acd891f77e0780c8beb174f3db7d424ed3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2017-04-17T05:44:05Z",
    "title_canon_sha256": "2eeff45ecf4ff25e45f0ac7215b93c728b7772412156d9eb7274c29eaad809ef"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.04877",
    "kind": "arxiv",
    "version": 3
  }
}