Pith Number

pith:3253ONU2

pith:2017:3253ONU2OVUPSDIEP3W2LT4ILH

not attested not anchored not stored refs pending

Tikhonov regularization with oversmoothing penalty for non-linear ill-posed problems in Hilbert scales

Bernd Hofmann, Peter Math\'e

arxiv:1705.03289 v2 · 2017-05-09 · 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{3253ONU2OVUPSDIEP3W2LT4ILH}

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	2026-05-18T00:25:57.924937Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

debbb7369a7568f90d047eeda5cf8859da97d293fcdc55492482a54be1f8a369

Aliases

arxiv: 1705.03289 · arxiv_version: 1705.03289v2 · doi: 10.48550/arxiv.1705.03289 · pith_short_12: 3253ONU2OVUP · pith_short_16: 3253ONU2OVUPSDIE · pith_short_8: 3253ONU2

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/3253ONU2OVUPSDIEP3W2LT4ILH \
  | 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: debbb7369a7568f90d047eeda5cf8859da97d293fcdc55492482a54be1f8a369

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "3f799135a75a3328bc2018c8eee399672a1ab284e9300e315a23d242777abd43",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2017-05-09T12:03:54Z",
    "title_canon_sha256": "19d1dd82e82a7249c39767477193bbd79dc77a43cd3f72bde3a868951b931744"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1705.03289",
    "kind": "arxiv",
    "version": 2
  }
}