Pith Number

pith:L6UDNWYF

pith:2019:L6UDNWYFWXNMOQFZCVGZUQUSZG

not attested not anchored not stored refs pending

k-Means Aperture Optimization Applied to Kepler K2 Time Series Photometry of Titan

Alex H. Parker, Carly J. A Howett, Erin L. Ryan, Sarah M. H\"orst

arxiv:1906.04220 v1 · 2019-06-10 · astro-ph.EP · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{L6UDNWYFWXNMOQFZCVGZUQUSZG}

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	2026-05-17T23:39:53.588237Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5fa836db05b5dac740b9154d9a4292c990038ac8b729f41aba2beaee4d6089c5

Aliases

arxiv: 1906.04220 · arxiv_version: 1906.04220v1 · doi: 10.48550/arxiv.1906.04220 · pith_short_12: L6UDNWYFWXNM · pith_short_16: L6UDNWYFWXNMOQFZ · pith_short_8: L6UDNWYF

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/L6UDNWYFWXNMOQFZCVGZUQUSZG \
  | 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: 5fa836db05b5dac740b9154d9a4292c990038ac8b729f41aba2beaee4d6089c5

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "49ac9542160b791e5045c2964eb39134dd2755800a666a4f61590d8504fed387",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2019-06-10T18:30:42Z",
    "title_canon_sha256": "59a4db8181660ae6de15d5a176b9aad89584ed5e09132eaf066817693af3aa15"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1906.04220",
    "kind": "arxiv",
    "version": 1
  }
}