Pith Number

pith:3AM5DKFC

pith:2020:3AM5DKFCC7C4UI4VUTH36JPSXW

not attested not anchored not stored refs pending

Persistent starspot signals on M dwarfs: multi-wavelength Doppler observations with the Habitable-zone Planet Finder and Keck/HIRES

Andrew J. Metcalf, Andrew Monson, Arpita Roy, Chad F. Bender, Christian Schwab, Connor Fredrick, Corey Beard, Eric B. Ford, Fred Hearty, Gudmundur Stefansson, Jack Lubin, Jason T. Wright, Joe P. Ninan, Jonathan Palafoutas, Lawrence W. Ramsey, Lydia Juan, Michael Endl, Nicholas Duong, Paul Robertson, Rae Holcomb, Ryan C. Terrien, Samuel Halverson, Scott A. Diddams, Shubham Kanodia, Suvrath Mahadevan, William D. Cochran

arxiv:2005.09657 v1 · 2020-05-19 · astro-ph.SR · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3AM5DKFCC7C4UI4VUTH36JPSXW}

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	2026-07-05T01:21:01.492591Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d819d1a8a217c5ca2395a4cfbf25f2bd934a6ee3f527ad7851db10b03b762586

Aliases

arxiv: 2005.09657 · arxiv_version: 2005.09657v1 · doi: 10.48550/arxiv.2005.09657 · pith_short_12: 3AM5DKFCC7C4 · pith_short_16: 3AM5DKFCC7C4UI4V · pith_short_8: 3AM5DKFC

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/3AM5DKFCC7C4UI4VUTH36JPSXW \
  | 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: d819d1a8a217c5ca2395a4cfbf25f2bd934a6ee3f527ad7851db10b03b762586

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0c0982ef2acc6c79f9f0af567667acbe160c10f3be6265e1ece7d405d6145ed4",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2020-05-19T18:00:01Z",
    "title_canon_sha256": "ad6892fe155e0ba01d26bce5663a450e78368545595b028fbc80252d59958b97"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2005.09657",
    "kind": "arxiv",
    "version": 1
  }
}