Pith Number

pith:O5FD4EQM

pith:2025:O5FD4EQMZPTPSSV46V7LVBMA5Q

not attested not anchored not stored refs pending

Universal quantum homomorphic encryption based on $(k, n)$-threshold quantum state sharing

Haoyun Zhang, Xing-Bo Pan, Yu-Ting Lei

arxiv:2502.18880 v1 · 2025-02-26 · 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{O5FD4EQMZPTPSSV46V7LVBMA5Q}

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	2026-07-05T10:20:22.517873Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

774a3e120ccbe6f94abcf57eba8580ec20dae0a683ff1ab04bc828d73c113928

Aliases

arxiv: 2502.18880 · arxiv_version: 2502.18880v1 · doi: 10.48550/arxiv.2502.18880 · pith_short_12: O5FD4EQMZPTP · pith_short_16: O5FD4EQMZPTPSSV4 · pith_short_8: O5FD4EQM

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/O5FD4EQMZPTPSSV46V7LVBMA5Q \
  | 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: 774a3e120ccbe6f94abcf57eba8580ec20dae0a683ff1ab04bc828d73c113928

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "0d622f41cd42a2891e99723a8508bba0ca7d0b5311e0a402d5b8f07a8809d8ca",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2025-02-26T06:56:25Z",
    "title_canon_sha256": "aeb5dcf33719deeb7a31e97524164de728c1910d56214ad8308279bdeb437cf4"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2502.18880",
    "kind": "arxiv",
    "version": 1
  }
}