Pith Number

pith:HACEKYCP

pith:2022:HACEKYCP5T672HJBWXNXKUTFEG

not attested not anchored not stored refs pending

The Very Knotty Lenser: exploring the role of regularization in source and potential reconstructions using Gaussian Process Regression

Georgios Vernardos, Leon V. E. Koopmans

arxiv:2202.09378 v1 · 2022-02-18 · astro-ph.GA

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{HACEKYCP5T672HJBWXNXKUTFEG}

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	2026-07-05T04:43:39.776014Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

380445604fecfdfd1d21b5db755265218a578927ea444a58d58b94b5906b0036

Aliases

arxiv: 2202.09378 · arxiv_version: 2202.09378v1 · doi: 10.48550/arxiv.2202.09378 · pith_short_12: HACEKYCP5T67 · pith_short_16: HACEKYCP5T672HJB · pith_short_8: HACEKYCP

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/HACEKYCP5T672HJBWXNXKUTFEG \
  | 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: 380445604fecfdfd1d21b5db755265218a578927ea444a58d58b94b5906b0036

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "97421ce776dfcd2132a34f72a24e15f3352b20acaa2b2365628568008bb2c32b",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.GA",
    "submitted_at": "2022-02-18T19:00:02Z",
    "title_canon_sha256": "72cc9e38a16e147361eef2998386df94e9f5a4f2c86020e67ca28ba98caf309b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2202.09378",
    "kind": "arxiv",
    "version": 1
  }
}