lbry.tech/documents/resources/schema.md

Claim

Claims have the encompassing schema:

message Claim {
    enum Version {
        UNKNOWN_VERSION = 0;
        _0_0_1 = 1;
    }
    required Version version = 1;
    enum ClaimType {
        UNKNOWN_CLAIM_TYPE = 0;
        streamType = 1;
        certificateType = 2;
    }
    required ClaimType claimType = 2;
    optional Stream stream = 3;
    optional Certificate certificate = 4;
    optional Signature publisherSignature = 5;
}

Stream

Claims of streamType have a stream:

message Stream {
    enum Version {
        UNKNOWN_VERSION = 0;
        _0_0_1 = 1;
    }
    required Version version = 1;
    required Metadata metadata = 2;
    required Source source = 3;
}

Metadata

Streams have metadata describing their content:

message Metadata {
    enum Version {
        UNKNOWN_VERSION = 0;
        _0_0_1 = 1;
        _0_0_2 = 2;
        _0_0_3 = 3;
        _0_1_0 = 4;
    }
    enum Language {
        UNKNOWN_LANGUAGE = 0;
        en = 1;
    }
    required Version version = 1;
    required Language language = 2;
    required string title = 3;
    required string description = 4;
    required string author = 5;
    required string license = 6;
    required bool nsfw = 7;

    optional Fee fee = 8;
    optional string thumbnail = 9;
    optional string preview = 10;
    optional string licenseUrl = 11;
}

Fee

Metadata may include a fee to access the decryption key:

message Fee {
    enum Version {
        UNKNOWN_VERSION = 0;
        _0_0_1 = 1;
    }
    enum Currency {
        UNKNOWN_CURRENCY = 0;
        LBC = 1;
        BTC = 2;
        USD = 3;
    }
    required Version version = 1;
    required Currency currency = 2;
    required bytes address = 3;
    required float amount = 4;
}

Source

Streams have a source to download:

message Source {
    enum Version {
        UNKNOWN_VERSION = 0;
        _0_0_1 = 1;
    }
    required Version version = 1;
    enum SourceTypes {
        UNKNOWN_SOURCE_TYPE = 0;
        lbry_sd_hash = 1;
    }
    required SourceTypes sourceType = 2;
    required bytes source = 3;
    required string contentType = 4;
}

Certificate

Claims of certificateType have a certificate:

message Certificate {
    enum Version {
        UNKNOWN_VERSION = 0;
        _0_0_1 = 1;
    }
    required Version version = 1;
    required KeyType keyType = 2;
    required bytes publicKey = 4;
}

Signature

Claims may be signed using the private key to a Certificate public key:

message Signature {
    enum Version {
        UNKNOWN_VERSION = 0;
        _0_0_1 = 1;
    }
    required Version version = 1;
    required KeyType signatureType = 2;
    required bytes signature = 3;
    required bytes certificateId = 4;
}