Pith Number

pith:3EQ32YBU

pith:2018:3EQ32YBUDAXARQWW6SJX47KJCB

not attested not anchored not stored refs pending

A fast algorithm for globally solving Tikhonov regularized total least squares problem

Longfei Wang, Meijia Yang, Yong Xia

arxiv:1810.11972 v1 · 2018-10-29 · 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{3EQ32YBUDAXARQWW6SJX47KJCB}

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	2026-05-18T00:02:06.824334Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d921bd6034182e08c2d6f4937e7d49106a79754ae18c6d0474d74bc96aaf4dc1

Aliases

arxiv: 1810.11972 · arxiv_version: 1810.11972v1 · doi: 10.48550/arxiv.1810.11972 · pith_short_12: 3EQ32YBUDAXA · pith_short_16: 3EQ32YBUDAXARQWW · pith_short_8: 3EQ32YBU

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/3EQ32YBUDAXARQWW6SJX47KJCB \
  | 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: d921bd6034182e08c2d6f4937e7d49106a79754ae18c6d0474d74bc96aaf4dc1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b18f33ade3fbd7a6caf0910d1f74af81db14c1ddf0725108d25603ca4c798ecc",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2018-10-29T06:27:52Z",
    "title_canon_sha256": "9b120ab6a8790d9ae747bf32f2c4a5fbcdbbd52701f8bae016341fe82b8aff14"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.11972",
    "kind": "arxiv",
    "version": 1
  }
}