Pith Number

pith:AMQJSQQK

pith:2020:AMQJSQQKFRGE4JVJ5ACARZSCLV

not attested not anchored not stored refs pending

Sky Quality Meter and satellite correlation for the night cloud cover analysis at astronomical sites

A. Bertolo, G. Carraro, I. Saviane, P. Fiorentin, R. Binotto, S. Cavazzani, S. Ortolani, V. Zitelli

arxiv:2004.03918 v1 · 2020-04-08 · astro-ph.IM

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{AMQJSQQKFRGE4JVJ5ACARZSCLV}

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	2026-07-05T00:55:14.843708Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

032099420a2c4c4e26a9e80408e6425d5f7e00dc74e87e57188e623ae0e0d154

Aliases

arxiv: 2004.03918 · arxiv_version: 2004.03918v1 · doi: 10.48550/arxiv.2004.03918 · pith_short_12: AMQJSQQKFRGE · pith_short_16: AMQJSQQKFRGE4JVJ · pith_short_8: AMQJSQQK

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/AMQJSQQKFRGE4JVJ5ACARZSCLV \
  | 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: 032099420a2c4c4e26a9e80408e6425d5f7e00dc74e87e57188e623ae0e0d154

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f04acb9d8986aef4308b9a70ceec958607280ac5c3ac6c899a21043412945d3a",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2020-04-08T10:26:10Z",
    "title_canon_sha256": "76203bc3b0c70b02df0e412d2b04b1a029023257704f86a5fb39d4e36b6f94a9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2004.03918",
    "kind": "arxiv",
    "version": 1
  }
}