status-im
/
eth2.0-specs
mirror of https://github.com/status-im/eth2.0-specs.git
2
0
Fork 0
Code Issues Projects Releases Wiki Activity

fix get_extended_sample_count proc signature 

Co-authored-by: Pop Chunhapanya <haxx.pop@gmail.com>
This commit is contained in:
Csaba Kiraly 2024-06-27 09:30:39 +02:00 committed by GitHub
parent ee977381de
commit 17dfb9ae57
No known key found for this signature in database
GPG Key ID: B5690EEEBB952194
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
specs/_features/eip7594/das-core.md
View File

@ -304,7 +304,7 @@ To custody a particular column, a node joins the respective gossip subnet. Verif
At each slot, a node SHOULD select at least `SAMPLES_PER_SLOT` column IDs for sampling. It is recommended to use uniform random selection without replacement based on local randomness. Sampling is considered successful if the node manages to retrieve all selected columns.
Alternatively, a node MAY use a method that selects more than `SAMPLES_PER_SLOT` columns while allowing some missing, respecting the same target false positive threshold (the probability of successful sampling of an unavailable block) as dictated by the `SAMPLES_PER_SLOT` parameter. A node can use the `get_extended_sample_count(samples_per_slot, allowed_failures) -> sample_count` helper function to determine the sample count for any selected number of allowed failures. Sampling is then considered successful if any `sample_count - allowed_failures` columns are retrieved successfully.
Alternatively, a node MAY use a method that selects more than `SAMPLES_PER_SLOT` columns while allowing some missing, respecting the same target false positive threshold (the probability of successful sampling of an unavailable block) as dictated by the `SAMPLES_PER_SLOT` parameter. A node can use the `get_extended_sample_count(allowed_failures) -> sample_count` helper function to determine the sample count for any selected number of allowed failures. Sampling is then considered successful if any `sample_count - allowed_failures` columns are retrieved successfully.
For reference, the table below shows the number of samples and the number of allowed missing columns assuming `NUMBER_OF_COLUMNS = 128` and `SAMPLES_PER_SLOT = 16`.