Pith Number

pith:BGVGVO6L

pith:2021:BGVGVO6LIIX6SLEV3NXRDPOPJD

not attested not anchored not stored refs pending

Efficient verification of entangled continuous-variable quantum states with local measurements

Jiangwei Shang, Xiangdong Zhang, Ye-Chao Liu

arxiv:2103.16275 v2 · 2021-03-30 · 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{BGVGVO6LIIX6SLEV3NXRDPOPJD}

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	2026-07-05T03:21:46.084666Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

09aa6abbcb422fe92c95db6f11bdcf48f1667e9b48c32208b5178fc2ff3b5e3d

Aliases

arxiv: 2103.16275 · arxiv_version: 2103.16275v2 · doi: 10.48550/arxiv.2103.16275 · pith_short_12: BGVGVO6LIIX6 · pith_short_16: BGVGVO6LIIX6SLEV · pith_short_8: BGVGVO6L

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/BGVGVO6LIIX6SLEV3NXRDPOPJD \
  | 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: 09aa6abbcb422fe92c95db6f11bdcf48f1667e9b48c32208b5178fc2ff3b5e3d

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e304410da8224d1b520f69c1aa7f504cf7a7c93ba4075a26e37b7e19284a15c9",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2021-03-30T11:59:03Z",
    "title_canon_sha256": "e22e2837c94c9975b908b2cbef9a0169b282dacdec0fd899088a50bf72bbff98"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2103.16275",
    "kind": "arxiv",
    "version": 2
  }
}