Pith Number

pith:IPPY5VR4

pith:2015:IPPY5VR4U73ECC4GEZFIJ2RWDR

not attested not anchored not stored refs pending

Coherence-enhanced efficiency of feedback-driven quantum engines

Kay Brandner, Michael Bauer, Michael T. Schmid, Udo Seifert

arxiv:1503.04865 v1 · 2015-03-16 · cond-mat.stat-mech · 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{IPPY5VR4U73ECC4GEZFIJ2RWDR}

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	2026-05-18T01:55:41.828541Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

43df8ed63ca7f6410b86264a84ea361c500ea570d79ee983a15daeac6342e50d

Aliases

arxiv: 1503.04865 · arxiv_version: 1503.04865v1 · doi: 10.48550/arxiv.1503.04865 · pith_short_12: IPPY5VR4U73E · pith_short_16: IPPY5VR4U73ECC4G · pith_short_8: IPPY5VR4

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/IPPY5VR4U73ECC4GEZFIJ2RWDR \
  | 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: 43df8ed63ca7f6410b86264a84ea361c500ea570d79ee983a15daeac6342e50d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "d64fe7a60fac49f161afc8b3aa0bf1390bf317d27f5164e35aa6990dbee52bee",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "cond-mat.stat-mech",
    "submitted_at": "2015-03-16T21:38:46Z",
    "title_canon_sha256": "66ddba1ebf75aea32c16fee00da918278c309206879009c7ae5cba8c54cf7f9b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1503.04865",
    "kind": "arxiv",
    "version": 1
  }
}