Pith Number

pith:ACO42GFO

pith:2012:ACO42GFOVTO23BNYN73QKH7GLR

not attested not anchored not stored refs pending

Superconducting microstrip amplifiers with sub-Kelvin noise temperature near 4 GHz

B. L. T. Plourde, M. P. DeFeo

arxiv:1206.2235 v2 · 2012-06-11 · cond-mat.supr-con · physics.ins-det

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{ACO42GFOVTO23BNYN73QKH7GLR}

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	2026-05-18T01:56:59.890294Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

009dcd18aeacddad85b86ff7051fe65c5c7ba497a0ff7a787f58e62cc01f14e8

Aliases

arxiv: 1206.2235 · arxiv_version: 1206.2235v2 · doi: 10.48550/arxiv.1206.2235 · pith_short_12: ACO42GFOVTO2 · pith_short_16: ACO42GFOVTO23BNY · pith_short_8: ACO42GFO

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/ACO42GFOVTO23BNYN73QKH7GLR \
  | 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: 009dcd18aeacddad85b86ff7051fe65c5c7ba497a0ff7a787f58e62cc01f14e8

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0f655c807982d59601b2c5f736fb06c75e139838c979a035ed370debd4666a07",
    "cross_cats_sorted": [
      "physics.ins-det"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.supr-con",
    "submitted_at": "2012-06-11T14:45:11Z",
    "title_canon_sha256": "9ee68203ff271436b1d44f9691b3224620020bbbc13e4ed64315ef5bb8f3fb86"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1206.2235",
    "kind": "arxiv",
    "version": 2
  }
}