Questions tagged [protocol]

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14
votes
3answers
460 views

What steps should be taken to safely upgrade a baker after a new protocol update

With the Athens upgrade looking likely, I am interested to hear how bakers can safely update their nodes to the latest version whilst experiencing minimum downtime. It has been straightforward doing ...
13
votes
2answers
141 views

Total amount of XTZ in existence

Is there an RPC to get the total amount of tezos in existence at some particular block (or cycle begin/end)?
10
votes
1answer
164 views

Is there a way to generate a pseudo-random number inside a contract in liquidity?

If I require a pseudo-random number (PRN) in the internal working of a function in liquidity, is there a way to do it? Is there one in Michelson? I already know about the way to send a PRN through RPC ...
9
votes
2answers
201 views

How to generate a fake but valid protocol hash?

How do I generate a fake but valid protocol hash, like ProtoGenesisGenesisGenesisGenesisGenesisGenesk612im?
8
votes
1answer
1k views

What flavor of zksnark in tezos

I have read that Nomadic Labs is working on incorporating some flavor of zksnarks into tezos for future amendment proposal (presumably in 2019). Looking at the literature I see there are many flavors ...
8
votes
2answers
473 views

What is the difference between fee and gaslimit?

With Ethereum, max fee is gas multiplied by the gas price. But with Tezos, when i construct an operation, the fee is personally set, why is it not computed by gas_limit?
7
votes
3answers
723 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 ...
7
votes
3answers
272 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
2answers
544 views

Fees in proto 003?

Fees have been updated from proto 002 to proto 003. Is there a reference document available somewhere that is indicating fee information for tezos proto 003 ?
7
votes
1answer
927 views

What is the smallest monetary unit in Tezos?

What is the smallest monetary unit in Tezos, and where is it defined in the code?
6
votes
2answers
196 views

What determines the length of a cycle in Tezos?

What are the consideration at play to choose the length of a cycle ? As any other economic parameter in Tezos it is subject to amendment however it would be great to collect here the things to think ...
6
votes
1answer
135 views

How to calculate a random seed?

For example, we have 126/128 nonces, revealed in cycle 99. /chains/main/blocks/409599/context/raw/json/cycle/98/nonces?depth=1 If I understand correctly, using these nonces we can calculate the ...
6
votes
1answer
384 views

What are nonce-revelations?

I'm in the process of setting up a HA baking infrastructure with multiple full nodes and a single baking service that can move to a different node if one goes down. I think I've got a handle on most ...
6
votes
0answers
130 views

Tendermint vs Grandpa & Babe

It seems Tezos is moving towards the Tendermint consensus, used by Cosmos. However, wouldn't a Grandpa & Babe consensus mechanism, as used in Polkadot, allow for better block scaling? EDIT: I am ...
5
votes
2answers
143 views

what this 2 empty [] mean?

when invoke with rpc api GET ..//operations. always has 2 emtpy []. what this mean? I only care transaction. please tell me kind:transaction is locate index where(must include in last index--...
5
votes
2answers
97 views

BABY5 vs. BABYM1? How does the network decide which is the "right" protocol?

The Tezos Docs say: Any node running the May release, in case of a successful promotion vote, will activate protocol 005_PsBABY5H, which contains a bug affecting bigmaps in smart contracts. ...
5
votes
1answer
140 views

Pruning empty accounts or inactive contracts?

Is it possible (or desirable feature if not) to be able to remove from the chain state old accounts or old contracts on certain conditions in tezos ?
5
votes
2answers
218 views

Amending the P2P Layer

Is it possible to amend the P2P layer of Tezos? As far as I understand from here, the amendment process is only for the economic protocol. If we wanted to suggest changes to how the P2P layer works ...
5
votes
1answer
57 views

why Inject an operation need latest block?

Can I do without using the latest block? Because I want to do offline signing. Could I perhaps sign with the latest known block instead of the latest?
4
votes
1answer
254 views

Largest block size in tezos?

Is there a limit on the block size in tezos? If so, is it expressed in a maximum number of transactions? Or maximum byte size? Or something else?
4
votes
2answers
279 views

the tezos protocol and the problem of over-delegation

Why does the Tezos protocol allow for baker over-delegation? It is the Tezos protocol itself that has encoded the amount of XTZ that needs to be put up for baking and endorsements and the protocol ...
4
votes
1answer
44 views

What does "stakeholders govern the protocol" exactly means?

I read that Tezos can also be used as votes for features in the Tezos development process. Is that related to which phase of process? Making feature requests in repo, accepting ones or sitting in ...
4
votes
1answer
47 views

Can /context/constants change apart from a protocol change?

The node RPC allows you to ask for the context constants for any block via /chains/<chain>/blocks/<block>/context/constants. Is it possible for these constants to change apart from a ...
4
votes
1answer
376 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 ...
4
votes
1answer
971 views

Maximum supply in tezos

1) Is there a way we can vote for a maximum supply in tezos ? 2) would that be a desireable thing from a tokenomics perspective ?
4
votes
1answer
145 views

Node gives testnet error

rebooted my system and restarted the node. Now I'm getting the following error. Is this simply the node telling me that it's not able to run the new fork because I started it with the old (i.e. ...
4
votes
1answer
64 views

Can I use an RPC to switch the Tezos node to another protocol?

What is the command line command or RPC call for switching a Tezos node onto one of the protocol amendments being voted on? During which phases is it possible to switch to a candidate protocol. ...
4
votes
1answer
43 views

Testnet Fork during Testing Period (Cycles 17-24)

Why is the testnet fork during the Testing Period (Cycles 17-24) only run for 48 hours as compared to the entire duration of 8 cycles of that phase? Wouldn't it make more sense to test for a longer ...
4
votes
0answers
22 views

Block Withholding Attacks

Would it be possible to do something similar to selfish mining or rather a block withholding attack in Tezos and if so how would that work? As far as I understand, Tezos being a PoS system, it'll be ...
3
votes
1answer
72 views

Where is the reward operation for athens?

Athens amendment proposal was succesfully integrated as proto004 into the mainnet at level 458753. The first mined block can be seen here https://api6.tzscan.io//v3/block/...
3
votes
1answer
49 views

Confusing about the Mathematical representation in white paper

I'm confusing with the S^S. Does it mean S*S in set theory? I need a detailed explain.
3
votes
1answer
57 views

Alphanet protocol synced with mainnet

If I test on the alphanet and everything works correctly, can I then safely assume that the same code / process will also work on the mainnet? The current Tezos protocol amendment voting process is ...
3
votes
1answer
73 views

Tokens on Tezos

I'm interested in creating a token, similar to an ERC20 token on Ethereum, on the Tezos network. If I see correctly, as of now there is no possibility to track tokens on any of the public block ...
3
votes
1answer
76 views

Michelson P2P message encoding

I'm looking to implement full message "forging" with no reliance on RPC calls. The P2P message doc does not cover all the details. Let's say I have the JSON representation of parameters and code, how ...
2
votes
2answers
368 views

Anticipated Delphi Switch

When is the Tezos mainnet expected to switch to Delphi? Is there anything that node owners should do in anticipation?
2
votes
2answers
1k views

How to calculate price of gas

In Ethereum one can get the gas price using web3.eth.gasPrice. In Tezos, does any RPC provide the gas price, or is there a formula to calculate the gas price?
2
votes
2answers
232 views

Block reward calculation in Babylon

There seems to be a bug in the block reward calculation in Babylon. For example, in block 664451 there were 26 endorsements. So the reward should be 16 * (0.8 + 0.2 * 26 / 32) = 15.4 XTZ (source). ...
2
votes
1answer
107 views

Fees for various operation [duplicate]

I understand that some operations require a minimal fee, for instance ꜩ0.001271 for transfer operations. Besides, some operations require to burn extra tez. Are these fees documented somewhere?
2
votes
2answers
49 views

Rewards for Operations

Out of these Operations which operations affect the balance of an Account either by rewards or by any transaction? First four I know they incur a fee at least so that balance gets affected. Can any ...
2
votes
1answer
29 views

Block Heights at which important changes happened to the protocol

I've been exploring the json dumps of each block through ./tezos-client rpc get /chains/main/blocks/<bid> and wanted to know the block heights at which some important changes might have happened ...
2
votes
1answer
53 views

Is the decimals can be change when protocol updating?

I am confusing when I'm reading the write paper because the decimals is actually 6 now.
2
votes
2answers
88 views

How to calculate KT1 addresses of the bootstrap_contracts

As we know, Tezos protocol activator accepts the bootstrap_contracts parameter to originate specified contracts when the blockchain is launched. For example, Tezos mainnet was launched with some "...
2
votes
1answer
20 views

What is the format of valid entrypoint names?

Are there any constraints on valid entrypoint names?
2
votes
2answers
244 views

Is this the right way to activate protocol cathage?

./tezos/tezos-client -l --base-dir ./tmp --addr localhost --port 18731 --block genesis activate protocol PsCARTHAGazKbHtnKfLzQg3kms52kSRpgnDY982a9oYsSXRLQEb with fitness 1 and key activator and ...
2
votes
1answer
60 views

How should I prepare as a baker, for Athens A protocol activation?

Can someone provide a step-by-step guide to help bakers to be prepared for Athens A protocol activation? Do we need to upgrade Ledger baking software?
2
votes
0answers
60 views

What exactly happens at the end of a cycle?

The Tezos protocol does a lot of bookkeeping at the end of a cycle to manage its validator set. According to our own research and that of others we came up with a list of assumptions that suggest the ...
2
votes
0answers
52 views

Why does querying tezos-node for test chain return 404?

I am querying a mainnet tezos node for test chain data using the url specified in the following question: Can I use an RPC to switch the Tezos node to another protocol? Specifically "/chains/test/...
2
votes
0answers
68 views

How to calculate the total locked XTZ?

Using the TZscan.io Stats - Key Numbers dashboard, how can I calculate the total locked XTZ in the system? And shouldn't this be a KPI measure by itself? Since delegators can very easily move their ...
1
vote
2answers
396 views

Zero-fee transactions

Need so help to understand the below transaction : [ { "type": "transaction", "id": 279, "level": 26, "timestamp": "2018-06-30T18:07:27Z", "hash": "...
1
vote
1answer
53 views

How to prepare a Protocol Change Proposal?

I want to know what is the procedure for preparing a protocol proposal. From my understanding it goes like this. Take the current Protocol src and make the changes in .ml files. Use a script to ...