Pith Number

pith:W3TVEBDP

pith:2025:W3TVEBDPKRLF2HAS2YNXCE3FQQ

not attested not anchored not stored refs pending

Three Years of High-Contrast Imaging of the PDS 70 b and c Exoplanets at H{\alpha} with MagAO-X: Evidence of Strong Protoplanet H{\alpha} Variability and Circumplanetary Dust

Alexander D. Hedglen, Alycia J. Weinberger, Avalon McLeod, Clarissa Pavao, Daniel Apai, Eden McEwen, Jared R. Males, Jay Kueny, Jennifer Lumbres, Jialin Li, Joseph D. Long, J. Szul\'agyi, Kate Follette, Kevin Wagner, Kyle Van Gorkom, Laird M. Close, Laura Perez, Lauren Schatz, Logan Pearce, Maggie Y. Kautz, Olivier Guyon, Rene Doyon, Sebastiaan Y. Haffert, Victor Gasho, Warren Foster, Ya-Lin Wu

arxiv:2502.14038 v1 · 2025-02-19 · 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{W3TVEBDPKRLF2HAS2YNXCE3FQQ}

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	2026-07-05T10:17:19.898270Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

b6e752046f54565d1c12d61b7113658429679ea068288bae758119ca4bfe9496

Aliases

arxiv: 2502.14038 · arxiv_version: 2502.14038v1 · doi: 10.48550/arxiv.2502.14038 · pith_short_12: W3TVEBDPKRLF · pith_short_16: W3TVEBDPKRLF2HAS · pith_short_8: W3TVEBDP

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/W3TVEBDPKRLF2HAS2YNXCE3FQQ \
  | 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: b6e752046f54565d1c12d61b7113658429679ea068288bae758119ca4bfe9496

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "43715adc0ae793a7c44fe2103dcc9ba4269c896caa139d56a1537d48afc6fa1b",
    "cross_cats_sorted": [
      "astro-ph.IM"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.EP",
    "submitted_at": "2025-02-19T19:00:02Z",
    "title_canon_sha256": "fd7de4e1bfaf4b879de614111ef82f81fded14c849ff4d5ac4e5d80ae82fdf64"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.14038",
    "kind": "arxiv",
    "version": 1
  }
}