Pith Number

pith:5SGCZYQM

pith:2021:5SGCZYQMLD5O62NF6A7CFUWQSN

not attested not anchored not stored refs pending

Experimental symmetric private information retrieval with measurement-device-independent quantum network

Chao Wang, Charles C.-W. Lim, Hong Jie Ng, Wen Yu Kon

arxiv:2109.12827 v2 · 2021-09-27 · quant-ph · cs.CR

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

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{5SGCZYQMLD5O62NF6A7CFUWQSN}

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	2026-07-05T03:20:23.859378Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

ec8c2ce20c58faef69a5f03e22d2d0936e294ef01201d68691186e109af3d2b9

Aliases

arxiv: 2109.12827 · arxiv_version: 2109.12827v2 · doi: 10.48550/arxiv.2109.12827 · pith_short_12: 5SGCZYQMLD5O · pith_short_16: 5SGCZYQMLD5O62NF · pith_short_8: 5SGCZYQM

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/5SGCZYQMLD5O62NF6A7CFUWQSN \
  | 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: ec8c2ce20c58faef69a5f03e22d2d0936e294ef01201d68691186e109af3d2b9

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "66c03101d1f28d9d27741ee5fe430aea0860616c209c0c39bc6b641f8d1b1e17",
    "cross_cats_sorted": [
      "cs.CR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2021-09-27T06:56:45Z",
    "title_canon_sha256": "d0ae56a1d750e05b08a4b480db22f39540c0dd3d9792bf50d2456707751cda92"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2109.12827",
    "kind": "arxiv",
    "version": 2
  }
}