4 votes
Accepted

On what block levels within a cycle can roll snapshots happen?

It is done at the levels corresponding to the cycle positions 255, 511, ..., 4095. Given that cycle_position == (level - 1) % 4096 (the first cycle has started at level 1, genesis being special), the ...
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  • 883
4 votes
Accepted

"estimated_time" on baking right is not constant

This happens when the network is running late. This estimated_time is computed on the "every baker at priority 0 will bake" hypothesis. Each time a block is baked by the baker of priority 1, it is ...
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3 votes
Accepted

baking_rights rpc return "401 Unauthorized"

Yes, you missed the documentation about the new ACLs that were introduced. The new ACLs broke RPC for just about everyone. Here is a node config snippet that allows all RPCs from localhost, adjust ...
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  • 3,364
3 votes
Accepted

What is the meaning of "seed used at cycle"?

What is the meaning of “seed used at cycle”? Before we go any further, let's explain what this seed is. For cycle n's baking rights, cycle n - 7 is the cycle where we determine how many rolls each ...
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  • 2,602
3 votes

What is the meaning of "seed used at cycle"?

It would appear as though those images are indeed wrong. Hard to determine 100% as there is so much going on with that post. (Side note: "tezzie" is wrong; the correct term is "tez"). Simply ask the ...
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  • 3,364
3 votes

What PRNG algorithm is used in tezos?

tl;dr it is home-made CSPRNG based on repeatedly hashing an initial seed with Blake2b. Details: The interface of this CSPRNG can be found in the protocol here, and the implementation here. (...
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  • 2,348
2 votes

Since a blockchain has no concept of time, how do you determine if a baker baked “on time” or not?

Blocks in Tezos are timestamped and it is assumed that nodes have synchronized clocks with bounded clock skew.
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  • 883
1 vote
Accepted

Baker Reliability index

This webpage gives an explanation of the TzStats baker reliability index.
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  • 2,348
1 vote
Accepted

How to ascertain the nature of a miss

It is not possible to directly retrieve from the RPCs the information you are requesting. Some public services index chain metadata in order to be able to provide extra historical details. For ...
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  • 1,979
1 vote

Missing Blocks for Months now - No endorsements present in mempool

This is a known problem. As discussed on gitlab, it seems to be two problems disguised as one. The first problem is poor connectivity leading to the baker waiting and missing blocks. The second ...
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  • 1,979

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