Pith Number

pith:BQAVQ4MH

pith:2022:BQAVQ4MH4LTV5ECWR6KYOKW6TR

not attested not anchored not stored refs pending

A Note on Copy-Protection from Random Oracles

Fatih Kaleoglu, Prabhanjan Ananth

arxiv:2208.12884 v1 · 2022-08-26 · cs.CR · 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{BQAVQ4MH4LTV5ECWR6KYOKW6TR}

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	2026-07-05T04:52:00.312853Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

0c01587187e2e75e90568f95872ade9c7019574737a236c1b765214f1e1790ba

Aliases

arxiv: 2208.12884 · arxiv_version: 2208.12884v1 · doi: 10.48550/arxiv.2208.12884 · pith_short_12: BQAVQ4MH4LTV · pith_short_16: BQAVQ4MH4LTV5ECW · pith_short_8: BQAVQ4MH

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/BQAVQ4MH4LTV5ECWR6KYOKW6TR \
  | 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: 0c01587187e2e75e90568f95872ade9c7019574737a236c1b765214f1e1790ba

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "e37332f12c20fc767f6e308a6332218c0a5ffddd7f7e0bef5550215c3f4566ad",
    "cross_cats_sorted": [
      "quant-ph"
    ],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "cs.CR",
    "submitted_at": "2022-08-26T22:40:07Z",
    "title_canon_sha256": "2063c6b36fbc87e8b3491197c6aeda672e765751831d51142cc4c9f212725ec0"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2208.12884",
    "kind": "arxiv",
    "version": 1
  }
}