Pith Number

pith:ELB3QWPN

pith:2015:ELB3QWPNCTPDWHCHS66VHYIG4L

not attested not anchored not stored refs pending

A New Recursive Least-Squares Method with Multiple Forgetting Schemes

Andrea Peruffo, Francesco Fraccaroli, Mattia Zorzi

arxiv:1503.07338 v1 · 2015-03-25 · 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{ELB3QWPNCTPDWHCHS66VHYIG4L}

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	2026-05-18T02:20:21.357799Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

22c3b859ed14de3b1c4797bd53e106e2fb2dd76625b1ed4915bc57c82fe7a841

Aliases

arxiv: 1503.07338 · arxiv_version: 1503.07338v1 · doi: 10.48550/arxiv.1503.07338 · pith_short_12: ELB3QWPNCTPD · pith_short_16: ELB3QWPNCTPDWHCH · pith_short_8: ELB3QWPN

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/ELB3QWPNCTPDWHCHS66VHYIG4L \
  | 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: 22c3b859ed14de3b1c4797bd53e106e2fb2dd76625b1ed4915bc57c82fe7a841

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0d9d1e34a4104e462865623b81136bfdb54872beb4d43769093f56eb2afaaa3b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.OC",
    "submitted_at": "2015-03-25T11:23:58Z",
    "title_canon_sha256": "68c74b39fda2bd6fe03eddc609b1255b1670c845894dc8a8973e44256e83280d"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.07338",
    "kind": "arxiv",
    "version": 1
  }
}