Pith Number

pith:3C5J4Y4F

pith:2005:3C5J4Y4FTM4L5X4UBDAHJGWHY2

not attested not anchored not stored refs pending

A broadband FFT spectrometer for radio and millimeter astronomy

(2) Acqiris Geneva, (3) UAS Solothurn, (4) UAS Aarau), Arnold O. Benz (1), Bruno Stuber (3), Cristian Monstein (1), D. Zardet (4) ((1) ETH Zurich, Hansueli Meyer (1), Paolo C. Grigis (1), V. Hungerbuhler (2)

arxiv:astro-ph/0509671 v1 · 2005-09-22 · astro-ph

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{3C5J4Y4FTM4L5X4UBDAHJGWHY2}

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	2026-05-18T01:07:30.476633Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

d8ba9e63859b38bedf9408c0749ac7c691ba32471eac6d34bab12586e29db1b7

Aliases

arxiv: astro-ph/0509671 · arxiv_version: astro-ph/0509671v1 · doi: 10.48550/arxiv.astro-ph/0509671 · pith_short_12: 3C5J4Y4FTM4L · pith_short_16: 3C5J4Y4FTM4L5X4U · pith_short_8: 3C5J4Y4F

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/3C5J4Y4FTM4L5X4UBDAHJGWHY2 \
  | 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: d8ba9e63859b38bedf9408c0749ac7c691ba32471eac6d34bab12586e29db1b7

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "8fd5b3b53220ae34d8e867a395c5806d1d9f8006c8e9839db575cfe9f64579f1",
    "cross_cats_sorted": [],
    "license": "",
    "primary_cat": "astro-ph",
    "submitted_at": "2005-09-22T11:13:46Z",
    "title_canon_sha256": "9ae60ae05aacf312916be47f3bb4da0a68d4857eb67071f8c1f7e9b0c88c63b5"
  },
  "schema_version": "1.0",
  "source": {
    "id": "astro-ph/0509671",
    "kind": "arxiv",
    "version": 1
  }
}