Pith Number

pith:PPQVU3AH

pith:2018:PPQVU3AHOHSM6TX4HIJ3RXA3QI

not attested not anchored not stored refs pending

Activity variation driven by flux emergence and transport on Sun-like stars

Alexander I. Shapiro, Emre I\c{s}{\i}k, Natalie A. Krivova, Sami K. Solanki

arxiv:1812.08976 v1 · 2018-12-21 · 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{PPQVU3AHOHSM6TX4HIJ3RXA3QI}

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	2026-05-17T23:57:45.729333Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

7be15a6c0771e4cf4efc3a13b8dc1b822c6ba8d9e73ae057482e98b96fea2a64

Aliases

arxiv: 1812.08976 · arxiv_version: 1812.08976v1 · doi: 10.48550/arxiv.1812.08976 · pith_short_12: PPQVU3AHOHSM · pith_short_16: PPQVU3AHOHSM6TX4 · pith_short_8: PPQVU3AH

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/PPQVU3AHOHSM6TX4HIJ3RXA3QI \
  | 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: 7be15a6c0771e4cf4efc3a13b8dc1b822c6ba8d9e73ae057482e98b96fea2a64

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8e8287771428f2805126e8b4a23d4dca7e8d747c1a8ea35b13c91e11d5962b34",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-12-21T07:08:22Z",
    "title_canon_sha256": "01241ad647887f1c921d0b0291d5b68ce4377ecf984db2ec6949eb358497a9ba"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1812.08976",
    "kind": "arxiv",
    "version": 1
  }
}