Pith Number

pith:LS2D2FGU

pith:2020:LS2D2FGUA7QJ4LZZPYB4NTKUYO

not attested not anchored not stored refs pending

Getting the model right; an information criterion for spectroscopy

Chung-Chi Lee, Dinko Milakovi\'c, John K. Webb, Robert F. Carswell

arxiv:2009.08336 v1 · 2020-09-17 · astro-ph.IM · astro-ph.GA · physics.data-an

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{LS2D2FGUA7QJ4LZZPYB4NTKUYO}

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	2026-07-05T01:53:57.158076Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5cb43d14d407e09e2f397e03c6cd54c3b679723ecfaa24023a419e6bcbb4da3d

Aliases

arxiv: 2009.08336 · arxiv_version: 2009.08336v1 · doi: 10.48550/arxiv.2009.08336 · pith_short_12: LS2D2FGUA7QJ · pith_short_16: LS2D2FGUA7QJ4LZZ · pith_short_8: LS2D2FGU

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/LS2D2FGUA7QJ4LZZPYB4NTKUYO \
  | 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: 5cb43d14d407e09e2f397e03c6cd54c3b679723ecfaa24023a419e6bcbb4da3d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "4e652856065850b9218946c18e4f11a6923b4b43697256701d8ec2073c86d617",
    "cross_cats_sorted": [
      "astro-ph.GA",
      "physics.data-an"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2020-09-17T14:35:13Z",
    "title_canon_sha256": "c6c5375ee380c45b30d3238a5ae02c7927653f92a5bb5a1fd498c5bfcb9e7eab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2009.08336",
    "kind": "arxiv",
    "version": 1
  }
}