Pith Number

pith:HQJCMPY4

pith:2017:HQJCMPY4E37VZCGAUL4VKPWFV5

not attested not anchored not stored refs pending

On One Property of Tikhonov Regularization Algorithm

Mikhail Ermakov

arxiv:1704.06998 v3 · 2017-04-23 · math.ST · stat.TH

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HQJCMPY4E37VZCGAUL4VKPWFV5}

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	2026-05-18T00:42:51.078447Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

3c12263f1c26ff5c88c0a2f9553ec5af6de04bea01d18a6175b35c4de3d3a7e2

Aliases

arxiv: 1704.06998 · arxiv_version: 1704.06998v3 · doi: 10.48550/arxiv.1704.06998 · pith_short_12: HQJCMPY4E37V · pith_short_16: HQJCMPY4E37VZCGA · pith_short_8: HQJCMPY4

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/HQJCMPY4E37VZCGAUL4VKPWFV5 \
  | 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: 3c12263f1c26ff5c88c0a2f9553ec5af6de04bea01d18a6175b35c4de3d3a7e2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2d1a3178c60bdbc308fc277e75831bebccf64df836f55879332e8efe993c0b23",
    "cross_cats_sorted": [
      "stat.TH"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "math.ST",
    "submitted_at": "2017-04-23T23:11:55Z",
    "title_canon_sha256": "fe5bf0167c2634a35ea07f59c3395989fa209e0f167befd9a9e764ff1be1d5ba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.06998",
    "kind": "arxiv",
    "version": 3
  }
}