Pith Number

pith:XO5PZ4YI

pith:2017:XO5PZ4YIJGICBVHBQTXYU5HU46

not attested not anchored not stored refs pending

Quantum amplification and purification of noisy coherent states

Giulio Chiribella, Xiaobin Zhao

arxiv:1701.04602 v3 · 2017-01-17 · 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{XO5PZ4YIJGICBVHBQTXYU5HU46}

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	2026-05-18T00:46:37.920642Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bbbafcf308499020d4e184ef8a74f4e782a70942feab1b8b11682fe46ee8e5f3

Aliases

arxiv: 1701.04602 · arxiv_version: 1701.04602v3 · doi: 10.48550/arxiv.1701.04602 · pith_short_12: XO5PZ4YIJGIC · pith_short_16: XO5PZ4YIJGICBVHB · pith_short_8: XO5PZ4YI

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/XO5PZ4YIJGICBVHBQTXYU5HU46 \
  | 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: bbbafcf308499020d4e184ef8a74f4e782a70942feab1b8b11682fe46ee8e5f3

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "de894b9579eeb2542591d7a40ba68a7fdd00a188eeb0e2d22810624e4135ddde",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2017-01-17T10:02:11Z",
    "title_canon_sha256": "1062b8a8c9c0e3a52a703cb263007f1947a441b08365f61479f82a37fe24117b"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1701.04602",
    "kind": "arxiv",
    "version": 3
  }
}