Pith Number

pith:FOXS5OB6

pith:2011:FOXS5OB6RK56XAQWU2JDKHYULV

not attested not anchored not stored refs pending

Multi-Parameter Tikhonov Regularization

Bangti Jin, Kazufumi Ito, Tomoya Takeuchi

arxiv:1102.1173 v2 · 2011-02-06 · math.NA · cs.SY · 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{FOXS5OB6RK56XAQWU2JDKHYULV}

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	2026-05-18T04:25:38.837263Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2baf2eb83e8abbeb8216a692351f145d5babf8d6b6fc2dee05cdb1b48b04ba92

Aliases

arxiv: 1102.1173 · arxiv_version: 1102.1173v2 · doi: 10.48550/arxiv.1102.1173 · pith_short_12: FOXS5OB6RK56 · pith_short_16: FOXS5OB6RK56XAQW · pith_short_8: FOXS5OB6

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/FOXS5OB6RK56XAQWU2JDKHYULV \
  | 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: 2baf2eb83e8abbeb8216a692351f145d5babf8d6b6fc2dee05cdb1b48b04ba92

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4de3d193fd3f17db06c6f00e55022ad916846a3fc3de6979c1efb387d7be8c63",
    "cross_cats_sorted": [
      "cs.SY",
      "math.OC"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.NA",
    "submitted_at": "2011-02-06T17:13:31Z",
    "title_canon_sha256": "443ed8ce7100f0d8e34280489a73a06d89401fef58d963e45f706de876233499"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1102.1173",
    "kind": "arxiv",
    "version": 2
  }
}