Pith Number

pith:MTBLWD43

pith:2018:MTBLWD43HCFONTHTOSSGBPAJLT

not attested not anchored not stored refs pending

Optical and mechanical design of the extreme AO coronagraphic instrument MagAO-X

Alex Hedglen, Corwynn Sauve, Jared R. Males, Jennifer Lumbres, Kelsey Miller, Kyle Van Gorkom, Laird M. Close, Lauren Schatz, Madison Jean, Maggie Kautz, Olivier Durney, Victor Gasho

arxiv:1807.04311 v1 · 2018-07-11 · astro-ph.IM · astro-ph.EP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{MTBLWD43HCFONTHTOSSGBPAJLT}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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	2026-05-18T00:10:53.904908Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

64c2bb0f9b388ae6ccf374a460bc095cd2a8f4875da3864b8a917f25b86984b2

Aliases

arxiv: 1807.04311 · arxiv_version: 1807.04311v1 · doi: 10.48550/arxiv.1807.04311 · pith_short_12: MTBLWD43HCFO · pith_short_16: MTBLWD43HCFONTHT · pith_short_8: MTBLWD43

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/MTBLWD43HCFONTHTOSSGBPAJLT \
  | 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: 64c2bb0f9b388ae6ccf374a460bc095cd2a8f4875da3864b8a917f25b86984b2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "9f055e514b36f58a919a78ab9af127de7a4bd703d47773fa56181d8fbc199afa",
    "cross_cats_sorted": [
      "astro-ph.EP"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2018-07-11T18:45:21Z",
    "title_canon_sha256": "1a0da11be06afa9e6571fc62c2d25fe21c174675415b5b941f5886e4e4105419"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.04311",
    "kind": "arxiv",
    "version": 1
  }
}