Pith Number

pith:Z7KZ42BA

pith:2011:Z7KZ42BAYQ3WXRXZ2J5WLSFFMR

not attested not anchored not stored refs pending

A 5 GHz LNA for a Radio-Astronomy Experiment

Armando Rocha, Domingos Barbosa, Luis Cupido, Miguel Bergano

arxiv:1103.0789 v1 · 2011-03-03 · 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{Z7KZ42BAYQ3WXRXZ2J5WLSFFMR}

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	2026-05-18T00:59:10.443858Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

cfd59e6820c4376bc6f9d27b65c8a5646af04c48e66c4a8337df2c5a0aa46f86

Aliases

arxiv: 1103.0789 · arxiv_version: 1103.0789v1 · doi: 10.48550/arxiv.1103.0789 · pith_short_12: Z7KZ42BAYQ3W · pith_short_16: Z7KZ42BAYQ3WXRXZ · pith_short_8: Z7KZ42BA

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/Z7KZ42BAYQ3WXRXZ2J5WLSFFMR \
  | 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: cfd59e6820c4376bc6f9d27b65c8a5646af04c48e66c4a8337df2c5a0aa46f86

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "074280c66878ea728144584021bb0ff31e0d87c187a0d255ea7afe64636b0033",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "astro-ph.IM",
    "submitted_at": "2011-03-03T21:22:44Z",
    "title_canon_sha256": "4aa1a420e5429d924affaf2b607a8ec15bf8701c84f2f4ec3ff74c78068f0765"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1103.0789",
    "kind": "arxiv",
    "version": 1
  }
}