Pith Number

pith:4VHQ7DCY

pith:2021:4VHQ7DCY5Q2NOYAEFJIPEXZLZO

not attested not anchored not stored refs pending

Monogamy of quantum discord

Lizhong Huang, Yang Zhang, Yu Guo

arxiv:2103.00924 v3 · 2021-03-01 · quant-ph · math-ph · math.MP

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{4VHQ7DCY5Q2NOYAEFJIPEXZLZO}

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	2026-07-05T03:20:54.651347Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

e54f0f8c58ec34d760042a50f25f2bcbb7fde8a6a444b7eda7738f4e7cccce6c

Aliases

arxiv: 2103.00924 · arxiv_version: 2103.00924v3 · doi: 10.48550/arxiv.2103.00924 · pith_short_12: 4VHQ7DCY5Q2N · pith_short_16: 4VHQ7DCY5Q2NOYAE · pith_short_8: 4VHQ7DCY

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/4VHQ7DCY5Q2NOYAEFJIPEXZLZO \
  | 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: e54f0f8c58ec34d760042a50f25f2bcbb7fde8a6a444b7eda7738f4e7cccce6c

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "f000115d110cd9c3f74332e41ed2cfa30a2a9d56637e1f632f7e61c2d255785b",
    "cross_cats_sorted": [
      "math-ph",
      "math.MP"
    ],
    "license": "http://creativecommons.org/licenses/by-nc-sa/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2021-03-01T11:32:46Z",
    "title_canon_sha256": "ce974a50e44ed05864ba5af0edf8e7214744d712e27bbc79a907e11fd7f7dfab"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.00924",
    "kind": "arxiv",
    "version": 3
  }
}