Pith Number

pith:2P7FRM24

pith:2018:2P7FRM244LEXC2WLAQGCFXG726

not attested not anchored not stored refs pending

The Commissioning Instrument for the Dark Energy Spectroscopic Instrument

Ashley J. Ross, Dan Pappalardo, David Brooks, Greg Tarle, Klaus Honscheid, Mark Derwent, Michael Schubnell, Paul Martini, Rebecca Coles, Suk Sien Tie, Thomas P. O'Brien

arxiv:1807.09378 v1 · 2018-07-24 · 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{2P7FRM244LEXC2WLAQGCFXG726}

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	2026-05-18T00:09:51.485001Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d3fe58b35ce2c9716acb040c22dcdfd798bb0a70b3fe0c1c7dd19a42389961e3

Aliases

arxiv: 1807.09378 · arxiv_version: 1807.09378v1 · doi: 10.48550/arxiv.1807.09378 · pith_short_12: 2P7FRM244LEX · pith_short_16: 2P7FRM244LEXC2WL · pith_short_8: 2P7FRM24

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/2P7FRM244LEXC2WLAQGCFXG726 \
  | 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: d3fe58b35ce2c9716acb040c22dcdfd798bb0a70b3fe0c1c7dd19a42389961e3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "72c2c0b01222ad7f92c9954c7dc7c902ff6818fd5d940ff47ca05cd192c1b963",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2018-07-24T22:31:18Z",
    "title_canon_sha256": "68e7efbe73bc6949210af1f0c4d68e43641642906b424b9e34f5403c6b0b1ad7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1807.09378",
    "kind": "arxiv",
    "version": 1
  }
}