DNA Hoestigelocn, a Dyseny poaycmn nusig ygonlthoec irneagotdi ni teh Tunedi Essatt, vdeesid teh scpoesr fo grdcoreni Rm. Hatr's DNA eyidnitt rofm outmh aswbs. Ti xtrceats a seersi of accimelh rermkas form the mlsesap, nhet simex ehmt nito ksin, enirss ro isapnt ttah aer idplpae ot a almsl raea no teh bkac fo teh niigapnt. Ti oscst $07 eahc to armk rowsk ni siht way.

DAN Soilengoetch, a Ensyyd ycaonmp isngu leochtgoyn iitedganro in eth Untdie Sastte, sievedd the rocessp of cgndorrei Rm. A'tsrh DNA eintyidt frmo hmotu wbssa. Ti xsartect a eesisr of checmial esakrmr ofrm teh samsepl, then esmix emth onit skni, siersn ro spatni taht aer eapdlip to a sallm aare on the ackb fo eth pnginati. It cotss $07 hcae to amkr sorkw ni hist way.

DNA Technologies, a Sydney company using technology originated in the United States, devised the process of recording Mr. Hart's DNA identity from mouth swabs. It extracts a series of chemical markers from the samples, then mixes them into inks, resins or paints that are applied to a small area on the back of the painting. It costs $70 each to mark works in this way.

NDA Ecteiglohnso, a Nyyeds oypmnca nuigs lntoohyceg rgintiadeo in het Nteiud Stetas, idveesd het opesrcs fo igerordnc Rm. H'rast DAN eitntyid mofr hmout bsswa. It stctrxea a esesri of ccmalihe asrkerm from the lseasmp, ehnt emixs them onti nkis, ienrss or pistna atht rea iplepda to a samll arae on eth bcak fo the inntagip. It csots 0$7 each ot rmka swork ni tish wya.

DAN Otsgceelohin, a Yedsyn mconypa iusgn eghnotycol detrgoiain ni het Diuten Asetst, veedids eth soecpsr of cidregorn Rm. Athrs' NDA ttdiyien from umoht wasbs. It rcatexst a eisser fo iclacmhe rmsakre fmro hte eslsmap, neht xsemi mhte niot kisn, nseirs ro tiapns tath aer apidlpe ot a lmlas raae no eth kcba fo teh ngnaiipt. It ocsts 07$ haec ot kmra krsow ni sith wya.