Pith Number

pith:4POC7I26

pith:2018:4POC7I26HZQHWTBYBFJQLQ4DFX

not attested not anchored not stored refs pending

Optimal scheduling and science delivery of spectra for millions of targets in thousands of fields: the operational concept of the Maunakea spectroscopic explorer (MSE)

Alan McConnachie, Alexis Hill, Calum Hervieu, Kei Seto, Nicolas Flagey, Patrick Hall

arxiv:1807.08019 v1 · 2018-07-20 · 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{4POC7I26HZQHWTBYBFJQLQ4DFX}

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	2026-05-18T00:10:14.473954Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e3dc2fa35e3e607b4c38095305c3832ddae58910227ef0c0382d1bdaac53e7a7

Aliases

arxiv: 1807.08019 · arxiv_version: 1807.08019v1 · doi: 10.48550/arxiv.1807.08019 · pith_short_12: 4POC7I26HZQH · pith_short_16: 4POC7I26HZQHWTBY · pith_short_8: 4POC7I26

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/4POC7I26HZQHWTBYBFJQLQ4DFX \
  | 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: e3dc2fa35e3e607b4c38095305c3832ddae58910227ef0c0382d1bdaac53e7a7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a532e9d8eb8606a6ff238877eebbf688fb70b5e8054e834744ae7416ad9b9887",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2018-07-20T20:24:06Z",
    "title_canon_sha256": "638bd0c99ee4a3b749d95615efd4066ffbdc870f5554e9149fc6aaceeada0d5b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.08019",
    "kind": "arxiv",
    "version": 1
  }
}