Pith Number

pith:MFWIH65E

pith:2018:MFWIH65EJPKNRIOPNUNSDXE73Q

not attested not anchored not stored refs pending

Sunspot data collection of Specola Solare Ticinese in Locarno

Andrea Manna, Marco Cagnotti, Michele Bianda, Renzo Ramelli, Sergio Cortesi

arxiv:1805.09202 v1 · 2018-05-23 · 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{MFWIH65EJPKNRIOPNUNSDXE73Q}

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	2026-05-17T23:55:14.521166Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

616c83fba44bd4d8a1cf6d1b21dc9fdc202c5df9804b5eb4e8c41981583f4e6e

Aliases

arxiv: 1805.09202 · arxiv_version: 1805.09202v1 · doi: 10.48550/arxiv.1805.09202 · pith_short_12: MFWIH65EJPKN · pith_short_16: MFWIH65EJPKNRIOP · pith_short_8: MFWIH65E

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/MFWIH65EJPKNRIOPNUNSDXE73Q \
  | 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: 616c83fba44bd4d8a1cf6d1b21dc9fdc202c5df9804b5eb4e8c41981583f4e6e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "ad7743141d1392470d23a11fb4bb0516c6baf20b649b5210ca3fe8465f89dbf5",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.SR",
    "submitted_at": "2018-05-23T14:47:42Z",
    "title_canon_sha256": "c9070e0176bc40ead741a4549f9ab4f373a85e99f5cd8bd41b9a3be3416d4c34"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.09202",
    "kind": "arxiv",
    "version": 1
  }
}