Bitcoin Forum

==== Tier 1 ====
BCB
Blazedout419
Blazr
DefaultTrust
EPiSKiNG		(re-added, must have accidentally removed him previously)
Gleb Gamow
Graet
grue
jwzguy
Kluge
KWH
LoweryCBS
Michail1
Mousepotato
piotr_n
Powell
smoothie
Stunna
theymos
tysat
wallet.dat
Tomatocage1		(only here for cascading to Tier 2)

==== Tier 2 ====
Vod			(deprecated, probationary)
Quickseller 		(deprecated, probationary)
dogie 			(deprecated, probationary)
DiamondCardz 		(new add, probationary)
haploid23 		(inactive)
John (John K.)		(inactive)
the joint		(deprecated, lacks sufficient Trust system history)
Gavin Andresen		(deprecated, lacks sufficient Trust system history)

==== Trimmed ====
BadBear			(already in DefaultTrust)
Maged			(already in DefaultTrust)
OgNasty			(already in DefaultTrust)

==== Explicitly Excluded ====
~gate11
~El Cabron
~shdvb

function trust_sources($user, $max_depth) {
        // arrays of user IDs
        $sources = array(); // your trust network
        $untrusted = array(); // ~excluded users, including exclusions via trust network
        $last = array($user); // users added in the previous depth round
        
        for($i=0; $i<=$max_depth; $i++) {
                if(count($last) == 0)
                        break;

                // get the trust lists of users added in the last round
                $last = implode(',', $last);
                $q = db_query("select ID_MEMBER_TRUSTED, type
                        from trust where ID_MEMBER in ($last)");

                // take exclusions into account to determine whether
                // to include or exclude each person considered
                $votes = array();
                while(list($u, $type) = mysql_fetch_array($q)) {
                        if(!isset($votes[$u]))
                                $votes[$u] = 0;
                        if($type == 1) // exclude
                                $votes[$u] -= 1;
                        else // trust
                                $votes[$u] += 1;
                }
                $last = array();
                foreach($votes as $u=>$v) {
                        if($v >= 0 && !isset($untrusted[$u])) // include
                                $sources[] = $last[] = $u;
                        else //exclude this person from future depths
                                $untrusted[$u] = 1;
                }

                //default trust
                if(count($last) == 0 && $i == 0 && empty($votes)) {
                        $default = array(122551);
                        $last += $default;
                        $sources += $default;
                }
        }

        //you always trust yourself
        $sources[] = $user;

        $sources = array_unique($sources, SORT_NUMERIC);

        return $sources;
}