Pith Number

pith:2R4VQLVP

pith:2017:2R4VQLVPSN233JBJ7CHBBRV6MX

not attested not anchored not stored refs pending

Evolution of Long Term Variability in Solar Analogs

Gregory W. Henry, Jeffrey C. Hall, Ricky Egeland, Sallie Baliunas, Willie Soon

arxiv:1704.02388 v1 · 2017-04-07 · 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{2R4VQLVPSN233JBJ7CHBBRV6MX}

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	2026-05-18T00:34:51.307272Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d479582eaf9375bda429f88e10c6be65da193d405f12bdb59f4b8410859829d4

Aliases

arxiv: 1704.02388 · arxiv_version: 1704.02388v1 · doi: 10.48550/arxiv.1704.02388 · pith_short_12: 2R4VQLVPSN23 · pith_short_16: 2R4VQLVPSN233JBJ · pith_short_8: 2R4VQLVP

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/2R4VQLVPSN233JBJ7CHBBRV6MX \
  | 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: d479582eaf9375bda429f88e10c6be65da193d405f12bdb59f4b8410859829d4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "44f45cda631b2dfff3047c63f395cf10b8b3c51dc6e516ec3160360a8e417b82",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2017-04-07T22:14:25Z",
    "title_canon_sha256": "7da2fed4bf40fa02a7dbf160b59f1ba4b164ef58f962cbc7a4c473fd4c64be02"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1704.02388",
    "kind": "arxiv",
    "version": 1
  }
}