Pith Number

pith:ICJSSPSJ

pith:2019:ICJSSPSJFKNH4MMWHBZUPWSX7S

not attested not anchored not stored refs pending

FOBOS: A Next-Generation Spectroscopic Facility at the W. M. Keck Observatory

A. Alabi, A. Coil, A. Romanowsky, A. Shapley, B. Siana, B. Williams, C. Poppett, C. Rockosi, C. Schafer, D. Cowley, D. Dillon, D. Masters, D. Schlegel, D. Weisz, G. Becker, G. Wilson, J. Burchett, J. Edelstein, J. Hennawi, J. Newman, J. O'Meara, J. Rhodes, J. X. Prochaska, K. Bundy, K.-G. Lee, K. Westfall, M. Cooper, M. Kassis, M. Rau, M. Savage, M. White, M. Wilson, N. Macdonald, P. Capak, P. Guhathakurta, R. Kupke, R. M. Rich, R. Yan, T. Miller, W. Deich, Y.-S. Ting

arxiv:1907.07195 v1 · 2019-07-16 · astro-ph.IM

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ICJSSPSJFKNH4MMWHBZUPWSX7S}

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	2026-05-17T23:40:27.456235Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

4093293e492a9a7e3196387347da57fca67f8e39a2f5b22c3caa727a7b223538

Aliases

arxiv: 1907.07195 · arxiv_version: 1907.07195v1 · doi: 10.48550/arxiv.1907.07195 · pith_short_12: ICJSSPSJFKNH · pith_short_16: ICJSSPSJFKNH4MMW · pith_short_8: ICJSSPSJ

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/ICJSSPSJFKNH4MMWHBZUPWSX7S \
  | 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: 4093293e492a9a7e3196387347da57fca67f8e39a2f5b22c3caa727a7b223538

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "100aa8f8e08a4f7661608aae9f590e0903467fd6c1ec30aae8907e2f9ee1dd8b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2019-07-16T18:00:23Z",
    "title_canon_sha256": "2a3702ea782712d1581c7a6bac67b11a1a9e117e87c6df6ae2de83f8218d28cc"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.07195",
    "kind": "arxiv",
    "version": 1
  }
}