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  {
   "cell_type": "markdown",
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   "metadata": {},
   "source": [
    "# Watermarking\n",
    "\n",
    "Generate `SPDX-Anchor` and `DAPX-Anchor` tags for registered artifacts.\n",
    "\n",
    "- **`SPDX-Anchor`** — for `CODE` artifacts. Extends the SPDX standard with an on-chain anchor.\n",
    "- **`DAPX-Anchor`** — for all other artifact types.\n",
    "\n",
    "> These examples run against Sepolia testnet (`network=\"sepolia\"`).\n",
    "> To run against Base mainnet: replace `configure(network=\"sepolia\")` with `configure(network=\"base\")`.\n",
    "> All function calls, record structures, and output shapes are identical across networks."
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 1,
   "id": "e5f6a7b8-0005-0000-0000-000000000002",
   "metadata": {},
   "outputs": [],
   "source": [
    "# Cell 1 — setup\n",
    "from anchorregistry import configure, watermark, BASE_SEPOLIA_RPC, V1A_BASE_SEPOLIA\n",
    "\n",
    "configure(\n",
    "    network=\"base-sepolia\",\n",
    "    contract_address=V1A_BASE_SEPOLIA,\n",
    "    rpc_url=BASE_SEPOLIA_RPC,  # swap for Infura / Alchemy URL for faster scans\n",
    ")\n"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 2,
   "id": "e5f6a7b8-0005-0000-0000-000000000003",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "DAPX-Anchor: anchorregistry.ai/AR-2026-dPXazj6\n"
     ]
    }
   ],
   "source": [
    "# Cell 2 — RESEARCH type → DAPX-Anchor (auto-resolved from chain)\n",
    "# Omit artifact_type — the function fetches the type from the contract\n",
    "line = watermark(\"AR-2026-dPXazj6\")\n",
    "print(line)\n",
    "# → DAPX-Anchor: anchorregistry.ai/AR-2026-D5bqN06"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 3,
   "id": "e5f6a7b8-0005-0000-0000-000000000004",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "DAPX-Anchor: anchorregistry.ai/AR-2026-dPXazj6\n"
     ]
    }
   ],
   "source": [
    "# Cell 3 — pass artifact_type explicitly (skips on-chain lookup)\n",
    "line = watermark(\"AR-2026-dPXazj6\", artifact_type=\"RESEARCH\")\n",
    "print(line)\n",
    "# → DAPX-Anchor: anchorregistry.ai/AR-2026-D5bqN06"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 4,
   "id": "e5f6a7b8-0005-0000-0000-000000000005",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "DAPX-Anchor: anchorregistry.ai/AR-2026-86pNXz1\n"
     ]
    }
   ],
   "source": [
    "# Cell 4 — DATA type → DAPX-Anchor\n",
    "line = watermark(\"AR-2026-86pNXz1\")\n",
    "print(line)\n",
    "# → DAPX-Anchor: anchorregistry.ai/AR-2026-p12z0e1"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "id": "e5f6a7b8-0005-0000-0000-000000000006",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "SPDX-Anchor: anchorregistry.ai/AR-2026-yPZBgoP\n"
     ]
    }
   ],
   "source": [
    "# Cell 5 — CODE type → SPDX-Anchor (explicit type override)\n",
    "# For CODE artifacts, watermark() produces an SPDX-Anchor tag\n",
    "# which extends the SPDX licence header standard with an on-chain anchor\n",
    "line = watermark(\"AR-2026-yPZBgoP\")\n",
    "print(line)\n",
    "# → SPDX-Anchor: anchorregistry.ai/AR-2026-D5bqN06"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 6,
   "id": "e5f6a7b8-0005-0000-0000-000000000007",
   "metadata": {},
   "outputs": [
    {
     "name": "stdout",
     "output_type": "stream",
     "text": [
      "# My Project\n",
      "\n",
      "DAPX-Anchor: anchorregistry.ai/AR-2026-dPXazj6\n"
     ]
    }
   ],
   "source": [
    "# Cell 6 — embed in a README or source file\n",
    "readme_line = f\"# My Project\\n\\n{watermark('AR-2026-dPXazj6')}\"\n",
    "print(readme_line)"
   ]
  }
 ],
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