Pith Number

pith:ZPAM47HQ

pith:2021:ZPAM47HQF6CBAHYIZEAFUKGTRA

not attested not anchored not stored refs pending

Auto-Differentiable Spectrum Model for High-Dispersion Characterization of Exoplanets and Brown Dwarfs

Dirk van den Bekerom, Erwan Pannier, Hajime Kawahara, Ian J. M. Crossfield, Kento Masuda, Yui Kawashima

arxiv:2105.14782 v2 · 2021-05-31 · astro-ph.EP · astro-ph.IM · astro-ph.SR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ZPAM47HQF6CBAHYIZEAFUKGTRA}

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	2026-07-05T03:54:57.154465Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cbc0ce7cf02f84101f08c9005a28d388170e55632ed7b4937024c5288c55b340

Aliases

arxiv: 2105.14782 · arxiv_version: 2105.14782v2 · doi: 10.48550/arxiv.2105.14782 · pith_short_12: ZPAM47HQF6CB · pith_short_16: ZPAM47HQF6CBAHYI · pith_short_8: ZPAM47HQ

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/ZPAM47HQF6CBAHYIZEAFUKGTRA \
  | 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: cbc0ce7cf02f84101f08c9005a28d388170e55632ed7b4937024c5288c55b340

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0d7175a81fd2ceafb5985cc2fac9fdce4111209d4a1fb53fe092649442114e2d",
    "cross_cats_sorted": [
      "astro-ph.IM",
      "astro-ph.SR"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2021-05-31T08:22:21Z",
    "title_canon_sha256": "c625913a78e1d14690c169cd35289492223da858d0a0675f91b221b60bf8df05"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2105.14782",
    "kind": "arxiv",
    "version": 2
  }
}