pith. sign in
Pith Number

pith:CPHMTUPY

pith:2013:CPHMTUPYCD6HZQI3EAVVECGHBP
not attested not anchored not stored refs pending

Quantum Refrigerator

Avinatan Hassidim, Daniel Gottesman, Michael Ben-Or

arxiv:1301.1995 v1 · 2013-01-09 · quant-ph

Add to your LaTeX paper
\usepackage{pith}
\pithnumber{CPHMTUPYCD6HZQI3EAVVECGHBP}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more

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.

Cited by

3 papers in Pith

Receipt and verification
First computed 2026-05-18T03:36:48.569166Z
Builder pith-number-builder-2026-05-17-v1
Signature Pith Ed25519 (pith-v1-2026-05) · public key
Schema pith-number/v1.0

Canonical hash

13cec9d1f810fc7cc11b202b5208c70bcc73097871033cab641893787d974817

Aliases

arxiv: 1301.1995 · arxiv_version: 1301.1995v1 · doi: 10.48550/arxiv.1301.1995 · pith_short_12: CPHMTUPYCD6H · pith_short_16: CPHMTUPYCD6HZQI3 · pith_short_8: CPHMTUPY
Agent API
Verify this Pith Number yourself
curl -sH 'Accept: application/ld+json' https://pith.science/pith/CPHMTUPYCD6HZQI3EAVVECGHBP \
  | 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: 13cec9d1f810fc7cc11b202b5208c70bcc73097871033cab641893787d974817
Canonical record JSON
{
  "metadata": {
    "abstract_canon_sha256": "466115cba647f959ec2143c862027e22a6872f103464c07bdc664174c6bd1cf8",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2013-01-09T21:55:59Z",
    "title_canon_sha256": "4e406ebca5251e3d6429118240e17620d50fe88359c02cae21ce786e057cc92b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1301.1995",
    "kind": "arxiv",
    "version": 1
  }
}