Pith Number

pith:NPDFIJVW

pith:2021:NPDFIJVWFS7C3NA3IE7XG4UMGZ

not attested not anchored not stored refs pending

Quantum Data Compression and Quantum Cross Entropy

Zhou Shangnan

arxiv:2106.13823 v3 · 2021-06-25 · quant-ph · cond-mat.stat-mech · cs.IT · cs.LG · hep-th · math.IT

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{NPDFIJVWFS7C3NA3IE7XG4UMGZ}

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.

Cited by

1 paper in Pith

Assessing GPT Model Uncertainty in Mathematical OCR Tasks via Entropy Analysis

Receipt and verification

First computed	2026-07-05T07:11:32.250347Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

6bc65426b62cbe2db41b413f73728c36725aa81823d8b5591b4df1689e884e66

Aliases

arxiv: 2106.13823 · arxiv_version: 2106.13823v3 · doi: 10.48550/arxiv.2106.13823 · pith_short_12: NPDFIJVWFS7C · pith_short_16: NPDFIJVWFS7C3NA3 · pith_short_8: NPDFIJVW

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/NPDFIJVWFS7C3NA3IE7XG4UMGZ \
  | 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: 6bc65426b62cbe2db41b413f73728c36725aa81823d8b5591b4df1689e884e66

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "c8cc6639482cfd66f2900e9498403472570bac168964db2186d30e10595ed18b",
    "cross_cats_sorted": [
      "cond-mat.stat-mech",
      "cs.IT",
      "cs.LG",
      "hep-th",
      "math.IT"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2021-06-25T18:00:33Z",
    "title_canon_sha256": "3432d4b70734bf696aef9c5b3eea10f76620f5f794d6c42938569ad9b1c06857"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2106.13823",
    "kind": "arxiv",
    "version": 3
  }
}