Merge 7568e6d into 444313b

.github/workflows/ci.yml

@@ -118,6 +118,21 @@ jobs:
           token: ${{ secrets.GITHUB_TOKEN }}
           unchecked: 1, 5069, 5757
 
+  check-license-lines:
+    name: Check licenses
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@2541b1294d2704b0964813337f33b291d3f8596b
+
+      - name: Delete Unchanged Files
+        id: changed-files
+        uses: Pandapip1/delete-unchanged-files@0937c94da2e9f9f262bbf2035e75065a1fd04bcf
+
+      - name: Check License Lines
+        uses: kt3k/license_checker@d12a6d90c58e30fefed09f2c4d03ba57f4c673a8
+        continue-on-error: true
+
   markdownlint:
     name: Markdown Linter
     runs-on: ubuntu-latest

.licenserc.json

@@ -0,0 +1,5 @@
+{
+  "**/*.{sol}": [
+    "// SPDX-License-Identifier: CC0-1.0"
+  ]
+}

EIPS/eip-1.md

@@ -333,7 +333,7 @@ References to other EIPs should follow the format `EIP-N` where `N` is the EIP n
 
 ## Auxiliary Files
 
-Images, diagrams and auxiliary files should be included in a subdirectory of the `assets` folder for that EIP as follows: `assets/eip-N` (where **N** is to be replaced with the EIP number). When linking to an image in the EIP, use relative links such as `../assets/eip-1/image.png`.
+Images, diagrams and auxiliary files should be included in a subdirectory of the `assets` folder for that EIP as follows: `assets/eip-N` (where **N** is to be replaced with the EIP number). When linking to an image in the EIP, use relative links such as `../assets/eip-1/image.png`. These files must be released into the public domain (or as close as is legally possible) using [CC0](../LICENSE.md). Solidity files must use the SPDX Identifier `CC0-1.0`.
 
 ## Transferring EIP Ownership