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{
"$schema": "https://json-schema.org/draft-07/schema#",
"title": "signed_tree_head_v0",
"description": "JSON-formatted signed tree head, version 0.",
"type": "object",
"required": [ "timestamp", "tree_size", "root_hash", "signatures" ],
"properties": {
"timestamp": {
"description": "The number of milliseconds since the UNIX epoch (January 1, 1970 00:00:00 UTC).",
"type": "integer",
"minimum": 0
},
"tree_size": {
"description": "The number of entries that are stored in the log's Merkle tree.",
"type": "integer",
"minimum": 0
},
"root_hash": {
"description": "The log's Merkle tree root hash in base64.",
"type": "string",
"minLength": 44,
"maxLength": 44
},
"signatures": {
"description": "A list of signer-signature pairs.",
"type": "array",
"items": {
"description": "A signer-signature pair.",
"type": "object",
"required": [ "key_hash", "signature" ],
"properties": {
"key_hash": {
"description": "A public verification-key hash that identifies the signer in base64.",
"type": "string",
"minLength": 44,
"maxLength": 44
},
"signature": {
"description": "The signer's signature over the log's tree_leaf structure in base64.",
"type": "string",
"minLength": 44,
"maxLength": 44
}
}
},
"minItems": 1
}
}
}
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