Pith Number

pith:6DF5QZDY

pith:2026:6DF5QZDYHU6L4JXNT5OEPRJY5F

not attested not anchored not stored refs pending

Low-cost, ultra-wideband, differential low-noise amplifier for interferometric radio telescopes

Albert Wai Kit Lau, Keith Vanderlinde, Sophia Da Costa

arxiv:2607.21715 v1 · 2026-07-23 · 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{6DF5QZDYHU6L4JXNT5OEPRJY5F}

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	2026-07-27T00:20:17.094633Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f0cbd864783d3cbe26ed9f5c47c538e97d5be2fa41416405f52bdff0cf3449b8

Aliases

arxiv: 2607.21715 · arxiv_version: 2607.21715v1 · doi: 10.48550/arxiv.2607.21715 · pith_short_12: 6DF5QZDYHU6L · pith_short_16: 6DF5QZDYHU6L4JXN · pith_short_8: 6DF5QZDY

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/6DF5QZDYHU6L4JXNT5OEPRJY5F \
  | 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: f0cbd864783d3cbe26ed9f5c47c538e97d5be2fa41416405f52bdff0cf3449b8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e1891d8fefb3c75b4c9496d0389f2784b86e5b5ff5c7189fcb483a827de9a378",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2026-07-23T18:01:34Z",
    "title_canon_sha256": "6cd50dfca8cc9e6687be19888215c2b89a7335972cb7b3cc9b318115196505c0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2607.21715",
    "kind": "arxiv",
    "version": 1
  }
}