Pith Number

pith:LLE4WVKA

pith:2019:LLE4WVKAXVOPN5NNKMG4FXEP76

not attested not anchored not stored refs pending

An International Survey of Front-End Receivers and Observing Performance of Telescopes for Radio Astronomy

A. Kraus, A. Orfei, A. Zanichelli, B.W. Sohn, C. Contavalle, C. Stanghellini, G. Zacchiroli, J. Lopez Perez, M. Beltr\'an, M. Burgay, M. Honma, M. Lindqvist, P. Bolli, P. Marongiu, R. Prestage, S.J. Tingay, S. Navarro, T. Minamidani, T. Pisanu, T. Tzioumis, Z.-Q. Shen

arxiv:1907.02491 v1 · 2019-07-04 · 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{LLE4WVKAXVOPN5NNKMG4FXEP76}

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	2026-05-17T23:41:07.010091Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

5ac9cb5540bd5cf6f5ad530dc2dc8fffbed94c36be5b01a791581488cb77bac6

Aliases

arxiv: 1907.02491 · arxiv_version: 1907.02491v1 · doi: 10.48550/arxiv.1907.02491 · pith_short_12: LLE4WVKAXVOP · pith_short_16: LLE4WVKAXVOPN5NN · pith_short_8: LLE4WVKA

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/LLE4WVKAXVOPN5NNKMG4FXEP76 \
  | 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: 5ac9cb5540bd5cf6f5ad530dc2dc8fffbed94c36be5b01a791581488cb77bac6

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c3c13bb59c472ca8321f42bb26820678696f8d74545a82b3e67569e72aace078",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2019-07-04T17:04:21Z",
    "title_canon_sha256": "3f88ce67bddc31b9d5eea708250e6344edeefb7541368ea930432da08170ffd7"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1907.02491",
    "kind": "arxiv",
    "version": 1
  }
}