Pith Number

pith:SAARX5NC

pith:2015:SAARX5NCH2YSQUXOUREZQLLWAI

not attested not anchored not stored refs pending

A small quantum absorption refrigerator with reversed couplings

Nicolas Brunner, Paul Skrzypczyk, Ralph Silva

arxiv:1504.03603 v1 · 2015-04-14 · quant-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{SAARX5NCH2YSQUXOUREZQLLWAI}

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	2026-05-18T01:35:59.740358Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

90011bf5a23eb12852eea449982d76021832f53c54882573747e64d99bd3e154

Aliases

arxiv: 1504.03603 · arxiv_version: 1504.03603v1 · doi: 10.48550/arxiv.1504.03603 · pith_short_12: SAARX5NCH2YS · pith_short_16: SAARX5NCH2YSQUXO · pith_short_8: SAARX5NC

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/SAARX5NCH2YSQUXOUREZQLLWAI \
  | 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: 90011bf5a23eb12852eea449982d76021832f53c54882573747e64d99bd3e154

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a4b5f057d70a736f24c8b745b5efe698c99bb0932059e4d55001f086ac89b85b",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2015-04-14T16:10:29Z",
    "title_canon_sha256": "5fe0c0ab48d8e9346254ec658ada0b2acc8ff797c39cbaf8e5123ab49bf409a0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1504.03603",
    "kind": "arxiv",
    "version": 1
  }
}