D://
0.0.11
Bitcoin dynamic content protocol
online
https://d.onchain.ch
Block 618942
/Bitcoin SV:1.0.0/
install
pc pull 1G3BpTyEK6xF4LaQTHqdFBBaVxYHZzts4M
files
README.md
planaria.js
planarium.js
package.json
# D:// _Bitcoin dynamic content protocol_ ## Benefit A D:// transaction refers to another transaction/file and thus forms a layer which state can be overwritten. This way, referencing content via D:// links (instead of b:// or c://) has the advantage of keeping the URL while the content can change. Example B:// (**can not** be changed once set):<br> ``<img src="B://<TxID>"`` Example D:// (content **can** be changed, because the state can be updated):<br> ``<img src="D://<OwnerBitcoinAddress>/<key>"`` #### Overwrite D:// State New transactions with the same `key` from a sender overwrite the previous state. The Planaria API always outputs only the most current state. The owner/key combination prevents an unauthorised person from changing the state. ## Protocol - The prefix for D is [19iG3WTYSsbyos3uJ733yK4zEioi1FesNU](https://genesis.bitdb.network/query/1FnauZ9aUH2Bex6JzdcV4eNX7oLSSEbxtN/ewogICJ2IjogMywKICAicSI6IHsKICAgICJmaW5kIjogewogICAgICAiaW4uZS5hIjogIjE5aUczV1RZU3NieW9zM3VKNzMzeUs0ekVpb2kxRmVzTlUiLAogICAgICAib3V0LnMxIjogIiQiCiAgICB9LAogICAgInNvcnQiOiB7CiAgICAgICJ0aW1lc3RhbXAiOiAxCiAgICB9LAogICAgImxpbWl0IjogMTAKICB9Cn0=), generated using [Bitcom](https://bitcom.bitdb.network) The sender of the transaction will always be an "owner" of the state = first input address will be able to change the state again. D:// transactions comes in 2 variants. ### External reference A D:// transaction with external reference is formatted like: ``` OP_RETURN 19iG3WTYSsbyos3uJ733yK4zEioi1FesNU [key] [value] [type] [sequence] ``` - `key` must have one of the following values: - NULL - An utf-8 encoded string no longer than 1024 bytes __not__ starting with `/` and not including the chars `[\x00-\x1F\x7F?#]`. It is suggested to simulate a folder like structure in a URI styled manner. Even if (almost) all utf8 chars are allowed it is not to be considered an [IRI](https://en.wikipedia.org/wiki/Internationalized_Resource_Identifier) as `key` must be url-escaped to become a valid [URI](https://en.wikipedia.org/wiki/Uniform_Resource_Identifier) whenever presented to a user. Only using `[a-zA-Z0-9_~/@!$&*+,.:;=-]` is therefore advisable. - `value` must have one of the following values: - NULL - a string utf8 encoded string no longer than 2086 bytes. - `type` must have one of the following values: - NULL - the string `c` indicating that `value` contains the sha256 hash of the targeted content - the string `b` indicating that `value` contains the transaction ID of a b:// formatted transaction. For internal references `type` must be set to the string `b` indicating that target transaction is a b:// formatted transaction. - the string `tx` to indicate that `value` contains the transaction ID of a transaction - The string `txt` indicating that `value` contains the full content of the latest state. - `sequence` must have one of the following values: - An integer larger than 0 and smaller than 2^53-1. Everything that is not a number or a negative number is considered to be `1`. Used to indicate the order of events if multiple updates are provided in the same block to the same key from the same owner. Example: ``` OP_RETURN 19iG3WTYSsbyos3uJ733yK4zEioi1FesNU "zebra.jpeg" 0f9e7b6542eba739bd407323f58d75327dd1d68a53d2a535337a4dcf0ddb0edc tx 1 ``` ### Internal reference A D:// transaction with internal reference is piped directly on to a B:// formatted structure (with mandatory fields for encoding and filename). `type` must always be `b` and `value` field will always be ignored. ``` OP_RETURN 19HxigV4QyBv3tHpQVcUEQyq1pzZVdoAut [DATA] [MEDIA TYPE] [ENCODING] or NULL [FILENAME] or NULL | 19iG3WTYSsbyos3uJ733yK4zEioi1FesNU [key] NULL b [sequence] ``` ### Explicit owner Both transactions with internal and external references can add an explicit owner by piping the [AIP protocol](https://github.com/BitcoinFiles/AUTHOR_IDENTITY_PROTOCOL) that signs all previous fields (API_ALL). Example A: ``` OP_RETURN 19iG3WTYSsbyos3uJ733yK4zEioi1FesNU [key] [value] [type] [sequence] | 15PciHG22SNLQJXMoSUaWVi7WSqc7hCfva [Signing Algorithm] [Signing Address] [Signature] ``` Example B: ``` OP_RETURN 19HxigV4QyBv3tHpQVcUEQyq1pzZVdoAut [DATA] [MEDIA TYPE] [ENCODING] or NULL [FILENAME] or NULL | 19iG3WTYSsbyos3uJ733yK4zEioi1FesNU [key] NULL b [sequence] | 15PciHG22SNLQJXMoSUaWVi7WSqc7hCfva [Signing Algorithm] [Signing Address] [Signature] ``` If a transaction includes a valid AIP signature and the signature involves all previous fields (AIP_ALL) both the sender and AIP signing address will create an updated state for `key`. Effectively this means that you will be able to access the content with both `D://<tx sender address>/<key>` and `D://<AIP signing address>/<key>`. ### Delete A key is "removed" by updating the key with a `type` value set to NULL (`0x00`). The state of the planaria will provide the string `deleted` as "type" when a key is removed. Example: ``` OP_RETURN 19iG3WTYSsbyos3uJ733yK4zEioi1FesNU [key] NULL NULL 1 ``` #### Example Tx This is an example Website with D:// link in it: https://bico.media/0363e9addc3f5de6587b250a07c4bab00f58f54cf780aa5f0f4655a8d3e4cfa5 The image is mapped like ``` <img src="D://19iG3WTYSsbyos3uJ733yK4zEioi1FesNU/der_wolf_und_die_sieben_geislein.jpeg">` ==> C://c808b8aa7bf72a0732d1a366d530b6ad3cdea1f25cbe075ca075dc1f55006e5e ==> B://efb301edd3a8b2270aea61cdc46bd923130a8c05245f763ff3c3c8fea1f0fc27 ``` State machine D:// tx: https://whatsonchain.com/tx/329eacb2d1ab8770ac01d2daa13a852d72282379ea26caca1729817315fb12b0 State machine Query: https://d.onchain.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 ## Referencing A D:// transaction is referenced by `D://<OwnerBitcoinAddress>/<key>` or `bit://19iG3WTYSsbyos3uJ733yK4zEioi1FesNU/<OwnerBitcoinAddress>/<key>` - Key must always be presented as a URL encoded string - In case the key is NULL no key is to be provided - In case no key is provided the `/` is optional - In case no key is provided, the content will tentatively be derived from the first of the following keys with an existing and none-deleted d:// transaction: 1. The key of `NULL` value (`0x00`) 2. The key `index.html` 2. The key `index.htm` ## Links - A [D:// Transactions](https://babel.bitdb.network/query/1DHDifPvtPgKFPZMRSxmVHhiPvFmxZwbfh/ewogICJ2IjogMywKICAicSI6IHsKICAgICJmaW5kIjogewogICAgICAib3V0LnMxIjogIjE5aUczV1RZU3NieW9zM3VKNzMzeUs0ekVpb2kxRmVzTlUiCiAgICB9LAogICAgImxpbWl0IjogMTAwCiAgfSwKICAiciI6IHsKICAgICJmIjogIlsuW10gfCB7IHRyYW5zYWN0aW9uOiAudHguaCwgYmxvY2s6IC5ibGssIHNlbmRlcjogLmluWzBdLmUuYSAsYXBwSUQ6IC5vdXRbMF0uczEsIGFsaWFzOiAub3V0WzBdLnMyLCBwb2ludGVyOiAub3V0WzBdLnMzLCB0eXBlOiAub3V0WzBdLnM0ICwgc2VxOiAub3V0WzBdLnM1ICxcIlVSSSBvdmVyIGh0dHBcIjogXCJodHRwczovL2RhdGEuYml0ZGIubmV0d29yay8xS3VVcjJwU0pEYW85N1hNOEpzcTh6d0xTNlcxV3RGZkxnL1xcKC5vdXRbMF0uczQpXC9cXCgub3V0WzBdLnMzKVwifV0iCiAgfQp9) - The [D:// State Machine](https://d.onchain.ch/query/1G3BpTyEK6xF4LaQTHqdFBBaVxYHZzts4M) #### Future ideas * An API that resolves D:// links to txids or an API that returns even the file data can be built. * Get a list of "files" in a directory (find all current tx with a key that starts with `xyz/` for a specific owner) * Multiple signatures to share control * X out of N signatures to share control * Support D:// piped on any type of transaction ---- _D:// was born as a brainchild of SH and @rangelWulff_
README.md