Pith Number

pith:RFAHDDWA

pith:2018:RFAHDDWA4MAOIAQYNPZHL24BSP

not attested not anchored not stored refs pending

A Calibrated Digital Sideband Separating Spectrometer for Radio Astronomy Applications

Leonardo Bronfman, Nicolas Reyes, Patricio Mena, Rafael Rodriguez, Ricardo Finger

arxiv:1805.06389 v1 · 2018-05-16 · 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{RFAHDDWA4MAOIAQYNPZHL24BSP}

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	2026-05-18T00:15:47.898007Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8940718ec0e300e402186bf275eb8193c3d58c657d3def52307e99ea2d790196

Aliases

arxiv: 1805.06389 · arxiv_version: 1805.06389v1 · doi: 10.48550/arxiv.1805.06389 · pith_short_12: RFAHDDWA4MAO · pith_short_16: RFAHDDWA4MAOIAQY · pith_short_8: RFAHDDWA

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/RFAHDDWA4MAOIAQYNPZHL24BSP \
  | 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: 8940718ec0e300e402186bf275eb8193c3d58c657d3def52307e99ea2d790196

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "745f6d8950e85120a85c1f755c36ec308dda2c19e686870527b0680b38e36a84",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2018-05-16T16:02:41Z",
    "title_canon_sha256": "a1a36ba1e347f157bec76402d6458d48c868c2962e55a8db8cc4c4990b23a1d0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1805.06389",
    "kind": "arxiv",
    "version": 1
  }
}