Pith Number

pith:5WCLAAVR

pith:2020:5WCLAAVRDBWI3VQ3ZI6R7OUBN3

not attested not anchored not stored refs pending

Developing the GOTO telescope control system

Danny Steeghs, Duncan K. Galloway, Joseph Lyman, Kendall Ackley, Krzysztof Ulaczyk, Martin J. Dyer, Paul Chote, Stuart Littlefair, Vik S. Dhillon, Yik Lun Mong

arxiv:2012.02686 v1 · 2020-12-04 · 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{5WCLAAVRDBWI3VQ3ZI6R7OUBN3}

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	2026-07-05T01:59:15.791841Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ed84b002b1186c8dd61bca3d1fba816ec1c75d2f9eb2fc56fb310b8485d6d15e

Aliases

arxiv: 2012.02686 · arxiv_version: 2012.02686v1 · doi: 10.48550/arxiv.2012.02686 · pith_short_12: 5WCLAAVRDBWI · pith_short_16: 5WCLAAVRDBWI3VQ3 · pith_short_8: 5WCLAAVR

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/5WCLAAVRDBWI3VQ3ZI6R7OUBN3 \
  | 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: ed84b002b1186c8dd61bca3d1fba816ec1c75d2f9eb2fc56fb310b8485d6d15e

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "493af3a8a5d3c57c08c28066cbe28a1d2ce2d24302a6a8964c6be3e1a437e114",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2020-12-04T15:55:41Z",
    "title_canon_sha256": "475db294dd97ffe80b80f75bcaefc0215d1461789bc9cfdeac30799010b716f7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2012.02686",
    "kind": "arxiv",
    "version": 1
  }
}