Pith Number

pith:YWD3G22E

pith:2015:YWD3G22EA2XP2FDGDSFGXTARDY

not attested not anchored not stored refs pending

Matrices Associated with Moving Least-Squares Approximation and Corresponding Inequalities

Svetoslav Nenov, Tsvetelin Tsvetkov

arxiv:1509.05601 v3 · 2015-09-18 · math.NA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{YWD3G22EA2XP2FDGDSFGXTARDY}

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	2026-05-18T01:28:45.911102Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

c587b36b4406aefd14661c8a6bcc111e21810511686341ab86cb51f98f21f2f0

Aliases

arxiv: 1509.05601 · arxiv_version: 1509.05601v3 · doi: 10.48550/arxiv.1509.05601 · pith_short_12: YWD3G22EA2XP · pith_short_16: YWD3G22EA2XP2FDG · pith_short_8: YWD3G22E

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/YWD3G22EA2XP2FDGDSFGXTARDY \
  | 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: c587b36b4406aefd14661c8a6bcc111e21810511686341ab86cb51f98f21f2f0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2407f38a86170b751d6c4de5c1523f06aa3911b2bd5e8d1b713492b2c457d8a3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2015-09-18T12:03:30Z",
    "title_canon_sha256": "dfb3eccb075e805ae253388174e95e01bcbedf63a389af90be48eeb6a6c4fb77"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1509.05601",
    "kind": "arxiv",
    "version": 3
  }
}