Filecoin Parameters #

Some of these parameters are used around the code in the Filecoin subsystems and ABI. Others are used as part of the proofs libraries.

Most are generated/finalized using the orient framework. It is used to modelize the Filecoin network.

⚠️ WARNING: Filecoin is not yet launched, and we are finishing protocol spec and implementations. Parameters are set here as placeholders and highly likely to change to fit product and security requirements.

Code parameters #

package node_base

import (
	addr "github.com/filecoin-project/go-address"
)

// Parameters for on-chain calculations are in actors/builtin/network_params.go

/////////////////////////////////////////////////////////////
// Global
/////////////////////////////////////////////////////////////

const NETWORK = addr.Testnet

// how many sectors should be challenged in surprise post (if miner has fewer, will get dup challenges)
const SURPRISE_CHALLENGE_COUNT = 200 // placeholder

const EPOST_SAMPLE_RATE_NUM = 1    // placeholder
const EPOST_SAMPLE_RATE_DENOM = 25 // placeholder
const SPOST_SAMPLE_RATE_NUM = 1    // placeholder
const SPOST_SAMPLE_RATE_DENOM = 50 // placeholder

/////////////////////////////////////////////////////////////
// Consensus
/////////////////////////////////////////////////////////////

const FINALITY = 500          // placeholder
const SPC_LOOKBACK_TICKET = 1 // we chain blocks together one after the other

Orient parameters #

LAMBDA	SPACEGAP	BLOCK-SIZE-KIB	SECTOR-SIZE-GIB
10	0.03	2.6084006	1024
10	0.03	2.9687543	1024
10	0.03	4.60544	256
10	0.03	6.9628344	256
10	0.03	7.195217	128
10	0.03	12.142387	128
10	0.03	15.2998495	1024
10	0.03	22.186821	32
10	0.03	42.125595	32
10	0.03	55.240646	256
10	0.03	107.03619	128
10	0.03	406.86823	32
10	0.06	2.3094485	1024
10	0.06	2.37085	1024
10	0.06	3.4674127	256
10	0.06	4.686779	256
10	0.06	4.9769444	128
10	0.06	7.705842	128
10	0.06	9.3208065	1024
10	0.06	13.775977	32
10	0.06	25.303907	32
10	0.06	32.48009	256
10	0.06	62.670723	128
10	0.06	238.65137	32
10	0.1	2.1490319	1024
10	0.1	2.1985393	1024
10	0.1	3.0452213	256
10	0.1	3.8423958	256
10	0.1	4.1540065	128
10	0.1	6.059966	128
10	0.1	7.102623	1024
10	0.1	10.6557865	32
10	0.1	19.063526	32
10	0.1	24.036263	256
10	0.1	46.211964	128
10	0.1	176.24756	32
10	0.2	1.9889219	1024
10	0.2	2.1184843	1024
10	0.2	2.7405148	256
10	0.2	3.2329829	256
10	0.2	3.5601068	128
10	0.2	4.8721666	128
10	0.2	5.501524	1024
10	0.2	8.404295	32
10	0.2	14.560543	32
10	0.2	17.942131	256
10	0.2	34.33397	128
10	0.2	131.21773	32
80	0.03	6.5753794	1024
80	0.03	10.902712	1024
80	0.03	19.707468	256
80	0.03	36.63338	128
80	0.03	37.16689	256
80	0.03	71.018715	128
80	0.03	94.63942	1024
80	0.03	133.81236	32
80	0.03	265.37668	32
80	0.03	357.2812	256
80	0.03	695.79944	128
80	0.03	2639.3792	32
80	0.06	4.183762	1024
80	0.06	6.1194773	1024
80	0.06	10.603248	256
80	0.06	18.887196	128
80	0.06	18.958448	256
80	0.06	35.526344	128
80	0.06	46.80707	1024
80	0.06	66.525635	32
80	0.06	130.80322	32
80	0.06	175.19678	256
80	0.06	340.8757	128
80	0.06	1293.6443	32
80	0.1	3.2964888	1024
80	0.1	4.3449306	1024
80	0.1	7.2257156	256
80	0.1	12.203384	256
80	0.1	12.303692	128
80	0.1	22.359337	128
80	0.1	29.061607	1024
80	0.1	41.564106	32
80	0.1	80.880165	32
80	0.1	107.64613	256
80	0.1	209.20566	128
80	0.1	794.4138	32
80	0.2	2.6560488	1024
80	0.2	3.0640512	1024
80	0.2	4.7880635	256
80	0.2	7.32808	256
80	0.2	7.552495	128
80	0.2	12.856943	128
80	0.2	16.252815	1024
80	0.2	23.55217	32
80	0.2	44.856293	32
80	0.2	58.89311	256
80	0.2	114.18173	128
80	0.2	434.17523	32