Pith Number

pith:GZWEWNMC

pith:2022:GZWEWNMCZXLW62YBD74OYAUECE

not attested not anchored not stored refs pending

What is the cost of adding a constraint in linear least squares?

Jun Wei, Ramakrishna Kakarala

arxiv:2201.09935 v1 · 2022-01-24 · cs.CV · stat.AP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{GZWEWNMCZXLW62YBD74OYAUECE}

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	2026-07-05T03:51:13.742976Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

366c4b3582cdd76f6b011ff8ec02841111dbefa32e6d9e8f66f51e7230b42863

Aliases

arxiv: 2201.09935 · arxiv_version: 2201.09935v1 · doi: 10.48550/arxiv.2201.09935 · pith_short_12: GZWEWNMCZXLW · pith_short_16: GZWEWNMCZXLW62YB · pith_short_8: GZWEWNMC

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/GZWEWNMCZXLW62YBD74OYAUECE \
  | 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: 366c4b3582cdd76f6b011ff8ec02841111dbefa32e6d9e8f66f51e7230b42863

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2813e8b2b22a712291cbb7071d4d8cf27059ed901baed48d48914dbed455955e",
    "cross_cats_sorted": [
      "stat.AP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cs.CV",
    "submitted_at": "2022-01-24T19:56:31Z",
    "title_canon_sha256": "ec966383fecd27a95cecbe0c70b99ca4f2f24004b961e43185d8317274e13ef8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2201.09935",
    "kind": "arxiv",
    "version": 1
  }
}