Questions tagged [encoding]

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2answers
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How do you convert a string sent to an entrypoint into its byte representation?

I want to turn a string into the 0x byte format inside an entrypoint. If I try to use sp.pack() the actual value I want gets prepended with pack instructions as detailed here I'm looking for a runtime ...
1
vote
1answer
33 views

Why does `sp.pack('some string')` prepend `0x05010000002e` before the actual bytes?

If I pass in the string QmbPAr5RcCZZDRsNKnf2p1t6GK3Qu7oDH39HCK3aewUq3w to the sp.pack method in an entrypoint and perform and sp.trace in smartpy I expect to get the following bytes: ...
6
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2answers
210 views

How to convert bytes to an address

When reading operations from a block, implicit accounts and contracts are returned with a key bytes and in hexadecimal format. "parameters": { "entrypoint": "transfer"...
1
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0answers
43 views

How to decode the contents of a block using `tezos-codec`

How do I extract the operations from a block using tezos-codec? I can decode the block header as follows below, but I'm interested in seeing the contents of the block. export BLOCK="...
4
votes
1answer
57 views

Documentation for Serializing Contract Call Data/Parameters

Is there any documentation available for how to serialize contract call parameters? I found good documentation for serialization of general operations and took a look at the tzips but neither seems ...
5
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3answers
417 views

How to decode raw transaction?

I am using @taquito to build and sign a transaction. But before I send it I want to decode it to check my destination address, amount etc like you would normally do for other blockchains. Not sure ...
5
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0answers
37 views

How to encode a transaction offline? [duplicate]

I'm writing an offline signature program without rpc,i have to encode transaction into bytes and I want to know the encoding rules. What should the tag parameter fill in? Under what circumstances do ...
7
votes
3answers
279 views

How do I base58 encode the chain ID using Python?

When Tezos needs to sign a baking or endorsement operation payload, byte 0 will be a 0x01 for a baking operation or 0x02 for an endorsement operation. Bytes 1-5 in the operation payload contain the ...
7
votes
3answers
804 views

Format of public key, signature and key_hash literals

According to grammar present in Michelson specification, there are string constants for types signature, key, key_hash. What is the precise format of these strings? Specifically: Suppose I have a key ...
4
votes
1answer
400 views

Contract's address format specification

Is there a specification somewhere which explains how to compute a human-readable address of a contract? In order to originate a contract I need to provide its code, initial storage value and some ...
7
votes
2answers
411 views

Base58 encoding/decoding of addresses in Micheline

who know some javascript library for decoding optimized Micheline representation of an address value? 011cd5f135e80fd8ebb6e43335b24ca6116edeba6900 => KT1BDEn6wobs7tDReKkGheXAhoq278TGaNn5