Pith Number

pith:MEK67OPQ

pith:2018:MEK67OPQB2IVI76P2MCWAUWKJ2

not attested not anchored not stored refs pending

Single conjugate adaptive optics for the ELT instrument METIS

Andreas Obereder, Brunella Carlomagno, Faustine Cantalloube, Iuliia Shatokhina, Markus Feldt, Olivier Absil, Remko Stuik, Stefan Hippler, Thomas Bertram, Wolfgang Brandner

arxiv:1810.07578 v2 · 2018-10-17 · 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{MEK67OPQB2IVI76P2MCWAUWKJ2}

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	2026-05-17T23:55:54.564110Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6115efb9f00e91547fcfd3056052ca4ebdb4ec4923704a39bc3fa25f9afa33c1

Aliases

arxiv: 1810.07578 · arxiv_version: 1810.07578v2 · doi: 10.48550/arxiv.1810.07578 · pith_short_12: MEK67OPQB2IV · pith_short_16: MEK67OPQB2IVI76P · pith_short_8: MEK67OPQ

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/MEK67OPQB2IVI76P2MCWAUWKJ2 \
  | 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: 6115efb9f00e91547fcfd3056052ca4ebdb4ec4923704a39bc3fa25f9afa33c1

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2661a498d8e5076831507bf630aa25dba2794fd106ed6fb2513e3b9a3c4dab97",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2018-10-17T14:32:13Z",
    "title_canon_sha256": "164e7b8f57d58f34898306101a60a80caf00004217e8be48d71ad2b63a55e698"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1810.07578",
    "kind": "arxiv",
    "version": 2
  }
}