Pith Number

pith:XL4HZN7U

pith:2020:XL4HZN7UGMWJO3J2D54ZRIMOKD

not attested not anchored not stored refs pending

Tied-array holography with LOFAR

D. D. Bordenave, H. J. A. R\"ottgering, J. B. R. Oonk, M. A. Brentjens, P. Salas

arxiv:2002.12306 v1 · 2020-02-27 · 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{XL4HZN7UGMWJO3J2D54ZRIMOKD}

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	2026-07-05T00:53:46.644624Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

baf87cb7f4332c976d3a1f7998a18e50ea27670e8054e06285e4452a08d72bd7

Aliases

arxiv: 2002.12306 · arxiv_version: 2002.12306v1 · doi: 10.48550/arxiv.2002.12306 · pith_short_12: XL4HZN7UGMWJ · pith_short_16: XL4HZN7UGMWJO3J2 · pith_short_8: XL4HZN7U

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/XL4HZN7UGMWJO3J2D54ZRIMOKD \
  | 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: baf87cb7f4332c976d3a1f7998a18e50ea27670e8054e06285e4452a08d72bd7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "acfdec48bce4d0e54a6982a22fa32a1207c13a7cd157388d3dfcd5073d6300c4",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2020-02-27T18:25:30Z",
    "title_canon_sha256": "1e4cbfca79b2589e75210ff0937ddc1dfd88befa3d06a93badc20b9ef3a04dd8"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2002.12306",
    "kind": "arxiv",
    "version": 1
  }
}