Pith Number

pith:C3IITGA4

pith:2016:C3IITGA4CIF6ARVYVECQLI5XCK

not attested not anchored not stored refs pending

The Mount Wilson Observatory S-index of the Sun

Alexei A. Pevtsov, Jeffrey C. Hall, Luca Bertello, Ricky Egeland, Sallie Baliunas, Willie Soon

arxiv:1611.04540 v2 · 2016-11-14 · 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{C3IITGA4CIF6ARVYVECQLI5XCK}

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	2026-05-18T00:52:49.373017Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

16d089981c120be046b8a90505a3b71294f9e150a1d9a99acc553d34490fdf9c

Aliases

arxiv: 1611.04540 · arxiv_version: 1611.04540v2 · doi: 10.48550/arxiv.1611.04540 · pith_short_12: C3IITGA4CIF6 · pith_short_16: C3IITGA4CIF6ARVY · pith_short_8: C3IITGA4

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/C3IITGA4CIF6ARVYVECQLI5XCK \
  | 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: 16d089981c120be046b8a90505a3b71294f9e150a1d9a99acc553d34490fdf9c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "24078d0ce2d3585d40483d492bffeb23b57c48d8c2a0bcde4807044ff0a3a27b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2016-11-14T19:36:34Z",
    "title_canon_sha256": "351e5953fbf98e0e5a283be6bc7cf5d41831e980ead8f7cccb9b4101c17c2867"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1611.04540",
    "kind": "arxiv",
    "version": 2
  }
}