Pith Number

pith:I7FFLCER

pith:2019:I7FFLCERFXXAX2NBZ4GHRHMRL6

not attested not anchored not stored refs pending

Multilayer Perceptron and Geometric Albedo Spectra for Quick Parameter Estimations of Exoplanets

Mark S Marley, Timothy K Johnsen

arxiv:1911.03997 v1 · 2019-11-10 · 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{I7FFLCERFXXAX2NBZ4GHRHMRL6}

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	2026-07-05T00:58:41.053605Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

47ca5588912dee0be9a1cf0c789d915f9aef6b963a723ca27cab5831c3d898a8

Aliases

arxiv: 1911.03997 · arxiv_version: 1911.03997v1 · doi: 10.48550/arxiv.1911.03997 · pith_short_12: I7FFLCERFXXA · pith_short_16: I7FFLCERFXXAX2NB · pith_short_8: I7FFLCER

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/I7FFLCERFXXAX2NBZ4GHRHMRL6 \
  | 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: 47ca5588912dee0be9a1cf0c789d915f9aef6b963a723ca27cab5831c3d898a8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ecd8960d447ebe59713cb4f1c825bcfde7b0cd48bf1ac244d61761c2c9ba2f5c",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://creativecommons.org/publicdomain/zero/1.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2019-11-10T21:12:24Z",
    "title_canon_sha256": "98dab96fc86e09d7c09915ac8993aa10b42ba60aab2bb1f305c4e8971035a4f0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1911.03997",
    "kind": "arxiv",
    "version": 1
  }
}