Pith Number

pith:7UQJW4QY

pith:2018:7UQJW4QYOOQBHUJNIBWPHVIMU4

not attested not anchored not stored refs pending

The MICADO first light imager for ELT: its astrometric performance

C. Arcidiacono, D. Massari, G. Rodeghiero, H. Riechert, J.-U. Pott, M. Fabricius, R. I. Davies

arxiv:1807.07402 v1 · 2018-07-19 · 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{7UQJW4QYOOQBHUJNIBWPHVIMU4}

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	2026-05-18T00:10:20.255813Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

fd209b721873a013d12d406cf3d50ca71c07e16c6f6c540bc73049ca428dee95

Aliases

arxiv: 1807.07402 · arxiv_version: 1807.07402v1 · doi: 10.48550/arxiv.1807.07402 · pith_short_12: 7UQJW4QYOOQB · pith_short_16: 7UQJW4QYOOQBHUJN · pith_short_8: 7UQJW4QY

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/7UQJW4QYOOQBHUJNIBWPHVIMU4 \
  | 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: fd209b721873a013d12d406cf3d50ca71c07e16c6f6c540bc73049ca428dee95

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7bab9ec69a80a8328f768ad8957685ea39d0f77eed9f57c70b545946b8294a59",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2018-07-19T13:35:49Z",
    "title_canon_sha256": "704c161551780cf0b2d9b36ff8d872fd991abdb3a8f39a7a1b4b93b83c17fb79"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.07402",
    "kind": "arxiv",
    "version": 1
  }
}