Pith Number

pith:UL6X3OIQ

pith:2011:UL6X3OIQ6LTNXDDT7WHDOAWCLE

not attested not anchored not stored refs pending

Adventures in Radio Astronomy Instrumentation and Signal Processing

Peter L. McMahon

arxiv:1109.0416 v1 · 2011-09-02 · 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{UL6X3OIQ6LTNXDDT7WHDOAWCLE}

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	2026-05-18T04:14:15.749871Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

a2fd7db910f2e6db8c73fd8e3702c2593cc7358af3133a4870d1b68994464896

Aliases

arxiv: 1109.0416 · arxiv_version: 1109.0416v1 · doi: 10.48550/arxiv.1109.0416 · pith_short_12: UL6X3OIQ6LTN · pith_short_16: UL6X3OIQ6LTNXDDT · pith_short_8: UL6X3OIQ

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/UL6X3OIQ6LTNXDDT7WHDOAWCLE \
  | 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: a2fd7db910f2e6db8c73fd8e3702c2593cc7358af3133a4870d1b68994464896

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "119af128676bcc4fe2b2158f78a6ffe6bbc8a629f0a2bd5c8bd97f1b627016be",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2011-09-02T11:57:51Z",
    "title_canon_sha256": "cdd1b559260608e9c42dbfd2805c883354914f370586a3d9ac8da92e42f6e4df"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1109.0416",
    "kind": "arxiv",
    "version": 1
  }
}