# rekor-cli > Immutable tamper resistant ledger of metadata generated within a software projects supply chain. > More information: . - Upload an artifact to Rekor: `rekor-cli upload --artifact {{path/to/file.ext}} --signature {{path/to/file.ext.sig}} --pki-format={{x509}} --public-key={{path/to/key.pub}}` - Get information regarding entries in the Transparency Log: `rekor-cli get --uuid={{0e81b4d9299e2609e45b5c453a4c0e7820ac74e02c4935a8b830d104632fd2d1}}` - Search the Rekor index to find entries by Artifact: `rekor-cli search --artifact {{path/to/file.ext}}` - Search the Rekor index to find entries by a specific hash: `rekor-cli search --sha {{6b86b273ff34fce19d6b804eff5a3f5747ada4eaa22f1d49c01e52ddb7875b4b}}`