Pith Number

pith:66NQ7DQH

pith:2022:66NQ7DQH6AAJ7FD5RAIUA65TFT

not attested not anchored not stored refs pending

Uncloneable Decryptors from Quantum Copy-Protection

Or Sattath, Shai Wyborski

arxiv:2203.05866 v2 · 2022-03-11 · 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{66NQ7DQH6AAJ7FD5RAIUA65TFT}

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	2026-07-05T04:05:17.506673Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

f79b0f8e07f0009f947d8811407bb32ce3fbb5d01ce6ae221aebf4657e0d55a0

Aliases

arxiv: 2203.05866 · arxiv_version: 2203.05866v2 · doi: 10.48550/arxiv.2203.05866 · pith_short_12: 66NQ7DQH6AAJ · pith_short_16: 66NQ7DQH6AAJ7FD5 · pith_short_8: 66NQ7DQH

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/66NQ7DQH6AAJ7FD5RAIUA65TFT \
  | 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: f79b0f8e07f0009f947d8811407bb32ce3fbb5d01ce6ae221aebf4657e0d55a0

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "2f274825df7915802433f4eb7d1eea36086cbd9f27d9f8ab04394fb096195db4",
    "cross_cats_sorted": [
      "cs.CR"
    ],
    "license": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
    "primary_cat": "quant-ph",
    "submitted_at": "2022-03-11T11:47:04Z",
    "title_canon_sha256": "d717440deee305d191be85106d72cb3035397c8e37e14f916121d9b63e43dfe9"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2203.05866",
    "kind": "arxiv",
    "version": 2
  }
}