Pith Number

pith:XW3NB3RA

pith:2018:XW3NB3RAA3SXAO5UAUZOYMHHKE

not attested not anchored not stored refs pending

Preserving Measurements for Optimal State Discrimination over Quantum Channels

Chahan M. Kropf, Joonwoo Bae, Spiros Kechrimparis, Tanmay Singal

arxiv:1811.07721 v1 · 2018-11-19 · 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{XW3NB3RAA3SXAO5UAUZOYMHHKE}

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	2026-05-17T23:43:37.739037Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

bdb6d0ee2006e5703bb40532ec30e75116fa986cd3c60db263491ab00601c43a

Aliases

arxiv: 1811.07721 · arxiv_version: 1811.07721v1 · doi: 10.48550/arxiv.1811.07721 · pith_short_12: XW3NB3RAA3SX · pith_short_16: XW3NB3RAA3SXAO5U · pith_short_8: XW3NB3RA

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/XW3NB3RAA3SXAO5UAUZOYMHHKE \
  | 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: bdb6d0ee2006e5703bb40532ec30e75116fa986cd3c60db263491ab00601c43a

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c66fee80095bc354174562623e25dc8ad2a4dac62cdfaa2385b05d8204570b1e",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2018-11-19T14:28:50Z",
    "title_canon_sha256": "f22119335e0ca53524c2de6165cd884872e49c16d4783d2e9b12b0a353df5496"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1811.07721",
    "kind": "arxiv",
    "version": 1
  }
}