Pith Number

pith:CEWMJ2OT

pith:2019:CEWMJ2OTKAOYUGTIBWWOEPES5Y

not attested not anchored not stored refs pending

Probing Polaris' Puzzling Radial Velocity Signals - Pulsational (In-)Stability, Orbital Motion, and Bisector Variations

Richard I. Anderson

arxiv:1902.08031 v2 · 2019-02-21 · 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{CEWMJ2OTKAOYUGTIBWWOEPES5Y}

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	2026-05-17T23:50:08.036529Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

112cc4e9d3501d8a1a680dace23c92ee38b99ee6dba9981f35f12af7844f9381

Aliases

arxiv: 1902.08031 · arxiv_version: 1902.08031v2 · doi: 10.48550/arxiv.1902.08031 · pith_short_12: CEWMJ2OTKAOY · pith_short_16: CEWMJ2OTKAOYUGTI · pith_short_8: CEWMJ2OT

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/CEWMJ2OTKAOYUGTIBWWOEPES5Y \
  | 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: 112cc4e9d3501d8a1a680dace23c92ee38b99ee6dba9981f35f12af7844f9381

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "b2da39515814d3edcbaa83fb3a1360d0f3f4ddbf1bba5f2e9132fd8af5c4d3f3",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2019-02-21T13:22:11Z",
    "title_canon_sha256": "656d55d97331f8bca238272116fe733dc7eb836416e84cbb853005987f22169a"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1902.08031",
    "kind": "arxiv",
    "version": 2
  }
}