Pith Number

pith:FJZ7KLOX

pith:2026:FJZ7KLOXATMN2PQHZCFPXFVFDA

not attested not anchored not stored refs pending

Quantum secure blind decryption with two users

Masahito Hayashi, Yuki Ito

arxiv:2606.01949 v1 · 2026-06-01 · 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{FJZ7KLOXATMN2PQHZCFPXFVFDA}

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	2026-06-02T02:05:01.347206Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

2a73f52dd704d8dd3e07c88afb96a51816a818fb61a1fc3950c979785e5905e2

Aliases

arxiv: 2606.01949 · arxiv_version: 2606.01949v1 · doi: 10.48550/arxiv.2606.01949 · pith_short_12: FJZ7KLOXATMN · pith_short_16: FJZ7KLOXATMN2PQH · pith_short_8: FJZ7KLOX

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/FJZ7KLOXATMN2PQHZCFPXFVFDA \
  | 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: 2a73f52dd704d8dd3e07c88afb96a51816a818fb61a1fc3950c979785e5905e2

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "a0f0c32621a655eb5c25a82e85cc602dc5620d457c8d2f93f1dfbfd29a97927f",
    "cross_cats_sorted": [],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2026-06-01T09:10:00Z",
    "title_canon_sha256": "715048463b7443130fe267207b372eabcef9f4c3a0535526d9b8ff5c00188d70"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2606.01949",
    "kind": "arxiv",
    "version": 1
  }
}