Pith Number

pith:SFV6DGUP

pith:2013:SFV6DGUPUTWMPRZ2K74AZ23YH5

not attested not anchored not stored refs pending

Embedded techniques for choosing the parameter in Tikhonov regularization

Maria Rosaria Russo, Paolo Novati, Silvia Gazzola

arxiv:1307.0334 v1 · 2013-07-01 · 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{SFV6DGUPUTWMPRZ2K74AZ23YH5}

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	2026-05-18T03:19:33.643079Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

916be19a8fa4ecc7c73a57f80ceb783f672ea9678b5123b4a136149d8c7754c1

Aliases

arxiv: 1307.0334 · arxiv_version: 1307.0334v1 · doi: 10.48550/arxiv.1307.0334 · pith_short_12: SFV6DGUPUTWM · pith_short_16: SFV6DGUPUTWMPRZ2 · pith_short_8: SFV6DGUP

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/SFV6DGUPUTWMPRZ2K74AZ23YH5 \
  | 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: 916be19a8fa4ecc7c73a57f80ceb783f672ea9678b5123b4a136149d8c7754c1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "147f311095b2e857b093bdaffe7784301a598da2e374462c7440be7195f08e3f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2013-07-01T11:21:28Z",
    "title_canon_sha256": "c2fc8b0aab020348e978d1a76d60cdbead91b06f0a699ecc5765fc5c373072fe"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1307.0334",
    "kind": "arxiv",
    "version": 1
  }
}