Piñata Vision barcode/Name bits

Name data

Based on released GoodVariants and Blackariants cards, encoded names are 3 to 9 characters long, the longest (and only 9-character name) being Francesca.

Other cards with longer names include Uncle Tusk, Fiddy Pence, Maximum Carnage, and Geckiesaurus Rex.

Based on the above names, the name length data is possibly a 5-bit field (0-31, with the likelihood that 0 indicates the absence of a variable-length name field to follow).

From the results of (obfuscation set C) cards that have been decoded so far, it's possible that the name itself may be encoded as (7-bit?) ASCII characters. Other sets need to be checked to verify if punctuation and spaces are likewise encoded as ASCII.

It's uncertain yet if/how accented or multi-byte Unicode characters (e.g., CJK) are encoded.

Location of name length bits

GoodVariants and Blackariants cards encode name length data in row 2, as determined by checking rows 1 and 2 for all obfuscation sets. It's likely that PlaceTag species also have a name length field in row 2, although the lack of specific name data for those cards makes it impossible to verify at this time.

Decoding name length bits

Reading name length data from obfuscation set 2 cards

% egrep "^[0-9A-F ]{32}2" barcodes.txt | ./barcodetxt2bitdiff.pl --short --namelen | ./reader.pl --namelen | egrep -v "        0       "
B._Orchid-Killer_Ins	9	E1E8C94D1D3E907E862310C95B859A62222CE0C6932E80B2                	NAMELEN = 1001     9
Christmas-12.25.2008	7	B18177A5BDFE1C9362BF4624050612F2F64D2CA27C7452174ED8F0B56F061703	NAMELEN = 0111     7
Tusk-Killer_Instinct	10	FE35B5B46A03DF5BF736C2C6BF0EED6283CD55C21F0FF2F4                	NAMELEN = 1010    10
Black_flyingpig     	6	E07B76921B8641D04363E08C768C9702                                	NAMELEN = 0110     6
Black_horse         	3	C02EFAB3FC45C649F29EE298258F17B2                                	NAMELEN = 0011     3
Black_hydra         	4	A2F8D58F59901FDABD68A6388136D502                                	NAMELEN = 0100     4
Black_lemmingpest   	4	D761959578F6492BBD6556381936D202                                	NAMELEN = 0100     4
Black_snowrabbit    	3	E7BCB0A0D0C52D37F283E298458F17B2                                	NAMELEN = 0011     3
Black_ostrich       	4	A2F8D58E5E1BADDA4D6E56389936D6B2                                	NAMELEN = 0100     4
Black_sandbuzzard   	4	CEEE69162D3BB0A4BD6456385936DB82                                	NAMELEN = 0100     4
Black_sandsnake     	3	EE89E1A8D8E56D27F2D5E29D458F37B2                                	NAMELEN = 0011     3
Good_monkey         	4	A2FF7406100E5A12BD69A638992FD482                                	NAMELEN = 0100     4
Good_pigeon         	6	F43E3EF3FC4596B992F2438C990D85F2                                	NAMELEN = 0110     6
Good_ostrich        	4	E4647B3B3B61538FBD60A638592FD482                                	NAMELEN = 0100     4
Good_ladybird       	8	CB7E6A360D0FE2D404C9447C4AABE492                                	NAMELEN = 1000     8

Location of name data

Names appear to be encoded starting in row 2, with longer names continuing on to row 3.

Decoding name data

By decoding the name length field, then decoding the following namelen characters, names can be read from the barcode. (Results stop at 6 characters, due to the lack of enough similarly-obfuscated longer-name cards.)

Reading name data from obfuscation set C cards

% egrep "^[0-9A-F ]{32}C" barcodes.txt | ./barcodetxt2bitdiff.pl --short --name | ./reader.pl --names
Black_bear          	Maya       	D772B9106F1F0425945FD4B86C41E59C                                	Namelen =  4 Name = Maya
Black_bluebottle    	Henry      	C47E77F3EC4596A92754CB15FAFBD6AC                                	Namelen =  5 Name = Henry
Black_chameleon     	Finlay     	D52CDFF36C4596B930B040B6BFBB599C                                	Namelen =  6 Name = Finlay
Black_cow           	Ellie      	C94D6E134D0446CCC1802815F8CAC3AC                                	Namelen =  5 Name = Ellie
Black_fox           	Rhys       	D4FBCA4E0F98F7AE945FD18B2F50D4AC                                	Namelen =  4 Name = Rhys
Black_orangebutterfl	Benjamin   	E471793A7872A38F71B6E394DCDEE3BC                                	Namelen =  8 Name = Benjam
Black_pony          	Keira      	B3F171A0BDFD067335542B15FBEBC7AC                                	Namelen =  5 Name = Keira
Black_snailpest     	Kieran     	A0FE543F350B5F32144263E69C8B58AC                                	Namelen =  6 Name = Kieran
Black_unicorn       	Francesca  	BC8174A07DFE06E31098FCBC0C65C0AC                                	Namelen =  9 Name = France
Black_whitebutterfly	Summer     	877DB9204C1A0415909008F68F9B18BC                                	Namelen =  6 Name = Summer
Black_penguin       	Daniel     	F966D06B27CE517194826266BE9B188C                                	Namelen =  6 Name = Daniel
Black_snowtiger     	Lydia      	E78CA0A4D3D42F6795B02B15FBF9F3AC                                	Namelen =  5 Name = Lydia
Black_sandant       	Mia        	836195952A2BC52BE6769697BF19E6FC                                	Namelen =  3 Name = Mia
Good_bat            	Mia        	E4653B3B3F14538FE676CF169F09E6FC                                	Namelen =  3 Name = Mia
Good_chameleon      	Amelia     	F976D2B826EE4A2136B268A68FBBB0BC                                	Namelen =  6 Name = Amelia
Good_hydra          	Jayden     	D1FBE84E1FC2F7AE308023D28DBA80AC                                	Namelen =  6 Name = Jayden
Good_snail          	Alice      	D0F8DA0E1630F7AEC1926815FC94F7AC                                	Namelen =  5 Name = Alice
Good_vulture        	Evie       	9A586E134D21E62C945FD5B17C41D49C                                	Namelen =  4 Name = Evie
Good_armadillo      	Ethan      	86B393A42F2ECD1897913855FD31E78C                                	Namelen =  5 Name = Ethan

Matching names

The following cards share pinata names, and belong to the same (row 2) obfuscation set.

Cards that also share matching variant data have nearly identical row 2 barcodes, differing in only a few bits.

Bit diff results for same-name, same-variant cards

                                             3310
 Description           VPID  Barcode row 2   3264
-------------------------------------------------
Good_elephant            38 5168F4494A171D81 0110  0x0026 0b0000000000100110
Good_dragonfly           33 5168F44A4A161D91 1001  0x0021 0b0000000000100001

                                             2100
 Description           VPID  Barcode row 2   4394
-------------------------------------------------
Good_crocodile           26 9A9C55CDE256C006 0000  0x001a 0b0000000000011010
Good_goose               52 9A9C55CDE356E216 1111  0x0034 0b0000000000110100

Ava

9FBEF59DCF5DD656 8683F11D287FC206	Bunnycomb-TroubleInParadise-BrightPink-(Ava-)PV.jpg (Variant 8)
A2F8D48C480E9EFA 8683F11D2DED9606	Buzzenge-TroubleInParadise-Black-Ava-PV.jpg (Variant 15)

Harley

97B6A3855B66CF88 5168F4494A171D81	Elephanilla-TroubleInParadise-PaleBlue-(Harley-)PV.jpg (Variant 5)
D37649004D560805 5168F44A4A161D91	Dragumfly-TroubleInParadise-PaleBlueRed-(Harley-)PV.jpg (Variant 5)
D1EBE85E5810F7AE 5168F4594AA61BF1	Mothdrop-TroubleInParadise-Black-(Harley-)PV.jpg (Variant 15)

Note that the first two cards share the same variant data, and that their row 2 barcodes are nearly identical.

Aimee

9A586E134C0BCD3C D26B28D7670ED64E	Roario-TroubleInParadise-Pink-(Aimee-)PV.jpg (Variant 6)
E17EC6B36C459649 D26B68C6F50ED64E	Tartridge-TroubleInParadise-Black-Aimee-)PV.jpg (Variant 15)

Mia

836195952A2BC52B E6769697BF19E6FC	DesertRaisant-TroubleInParadise-Black-Mia-PV.jpg (Variant 15)
E4653B3B3F14538F E676CF169F09E6FC	Sherbat-TroubleInParadise-Blue-(Mia-)PV.jpg (Variant 2)

James

DEE66A946C1BE2B4 9A9C55CDE256C006	Cocoadile-TroubleInParadise-Pink-James-PV.jpg (Variant 5)
D37248104F172B35 9A9C55CDE356E216	Juicygoose-TroubleInParadise-Purple-James-PV.jpg (Variant 5)

D37248104F172B35 9B636492E839E419	Juicygoose-TroubleInParadise-PaleBlue-(James-)PV.jpg (Variant 6)
D76195943B0B6A2B AB6364927878B019	Fudgehog-TroubleInParadise-Black-James-PV.jpg (Variant 15)

Again, the first two cards share the same variant data, and their row 2 barcodes are nearly identical.

The third card happens to share a matching pinata name, but its row 2 barcode is obfuscated differently. Although name length does seem to be one factor in row 2 obfuscation set selection, another factor (such as variant bits or GoodVariants ID) may jointly determine how row 2 is obfuscated.

Also notable (but unrelated) is that the row 1 barcodes for the two Juicygoose cards are identical. The cards do share the same species ID (and use cost). It's unknown at this point if the matching names have any influence on the row 1 barcode, but the differing variant data appears to be completely unrelated to row 1.

Harrison

F94FD444267E40A1 52AD208D61C7E499	ArcticPretztail-TroubleInParadise-Black-Harrison-PV.jpg (Variant 15)
99AD6E134E553CFC 52AD208DE12FC019	Kittyfloss-TroubleInParadise-Orange-Harrison-PV.jpg (Variant 2)

Dominic

869287B06F67CF08 DE2A7444D91B7EED	Polollybear-TroubleInParadise-Black-(Dominic-)PV.jpg (Variant 15)
EE89F0A4D3E03D27 DC1AE444D95B2EED	Salamango-TroubleInParadise-Pink-(Dominic-)PV.jpg (Variant 5)

Jake

A2FF7406100E5A12 BD69A638992FD482	Cinnamonkey-TroubleInParadise-OrangePink-Jake-PV.jpg (Variant 6)
A2F8D58F59901FDA BD68A6388136D502	Fourheads-TroubleInParadise-Black-Jake-PV.jpg (Variant 15)

Amber

E7B9E1A9B9D52D27 8D16F31B70A46CF5	Mousemallow-TroubleInParadise-Black-(Amber-)PV.jpg (Variant 15)
F86279A0C918644D 8812E33B70542DE5	Swanana-TroubleInParadise-White-Amber-PV.jpg (Variant 3)

Bethany

B3C172A87DF006B3 526C9D234A3758FA	Peckanmix-TroubleInParadise-Black-Bethany-PV.jpg (Variant 15)
D06E24F3EC4B92B9 526C8E731A3752DA	Salamango-TroubleInParadise-Orange-(Bethany-)PV.jpg (Variant 3)

Brooke

DA7FF9E65C2FF2B4 D700F8B09B18C61D	Chocstrich-TroubleInParadise-YellowGreen-(Brooke-)PV.jpg (Variant 8)
A2F8D48E506B0EFA FE92F9F01B58C63D	Jeli-TroubleInParadise-Black-Brooke-PV.jpg (Variant 15)

Joshua

E46168786F7EA38F 339DC922C32ED674	Custacean-TroubleInParadise-Green-Joshua-PV.jpg (Variant 2)
E78CB1EBDDE07D37 27123900C33E8654	Sweetle-TroubleInParadise-Black-(Joshua-)PV.jpg (Variant 15)

Leon

E07B7F521BCC57C0 6078136B46122C81	Buzzlegum-TroubleInParadise-Yellow-(Leon-)PV.jpg (Variant 3)
F97FD4A826AE50C1 627810DB56122581	Cluckles-TroubleInParadise-Black-Leon-PV.jpg (Variant 15)

Oscar

964EFA9F9E5D34B6 A9F37DA3E8732E08	Hootyfruity-TroubleInParadise-Orange-(Oscar-)PV.jpg (Variant 6)
C43AC7B7E9449209 A8D27DA3E8730CA8	Shellybean-TroubleInParadise-Black-Oscar-PV.jpg (Variant 15)

Thomas

BC81EDA03D6E1613 B20530B8D8DF88A3	Pigxie-TroubleInParadise-PaleGreenWhite-Thomas-PV.jpg (Variant 10)
F95FD018275E76C1 B22530B0C8DC80E3	SourLimeoceros-TroubleInParadise-Black-Thomas-PV.jpg (Variant 15)

Non-matching names

The following cards belong to the same (row 2) obfuscation set, but have differing pinata names. However, their names are all the same length, raising the possibility that a) there is a length "byte" for the name field, and b) the row 2 obfuscation set selection involves bits from that field.

Obfuscation set 2, 3-character name

E7BCB0A0D0C52D37 F283E298458F17B2	ArcticBunnycomb-TroubleInParadise-Black-(Leo-)PV.jpg (Variant 15)
C02EFAB3FC45C649 F29EE298258F17B2	Horstachio-TroubleInParadise-Black-(Kai-)PV.jpg (Variant 15)
EE89E1A8D8E56D27 F2D5E29D458F37B2	DesertSyrupent-TroubleInParadise-Black-Ben-PV.jpg (Variant 15)

Obfuscation set 2, 4-character name

E4647B3B3B61538F BD60A638592FD482	Chocstrich-TroubleInParadise-Orange-(Liam-)PV.jpg (Variant 6)
CEEE69162D3BB0A4 BD6456385936DB82	DesertBuzzenge-TroubleInParadise-Black-Kyle-PV.jpg (Variant 15)
D761959578F6492B BD6556381936D202	SourLemmoning-TroubleInParadise-Black-(Luke-)PV.jpg (Variant 15)

Obfuscation set C, 4-character name

D4FBCA4E0F98F7AE 945FD18B2F50D4AC	Pretztail-TroubleInParadise-Black-Rhys-PV.jpg (Variant 15)
D772B9106F1F0425 945FD4B86C41E59C	Fizzlybear-TroubleInParadise-Black-Maya-PV.jpg (Variant 15)
9A586E134D21E62C 945FD5B17C41D49C	Vulchurro-TroubleInParadise-Green-Evie-PV.jpg (Variant 7)

Process of decoding names

Assuming the names are encoded as ASCII, change IDs to match the ASCII value of the name's first character (e.g., Maya, M = 77 decimal).

% egrep "^[0-9A-F ]{32}C" barcodes.txt | ./barcodetxt2bitdiff.pl --short --name=1
Black_bear          	77	D772B9106F1F0425945FD4B86C41E59C	Character 1 = M (Maya)
Black_bluebottle    	72	C47E77F3EC4596A92754CB15FAFBD6AC	Character 1 = H (Henry)
Black_chameleon     	70	D52CDFF36C4596B930B040B6BFBB599C	Character 1 = F (Finlay)
Black_cow           	69	C94D6E134D0446CCC1802815F8CAC3AC	Character 1 = E (Ellie)
Black_fox           	82	D4FBCA4E0F98F7AE945FD18B2F50D4AC	Character 1 = R (Rhys)
Black_orangebutterfl	66	E471793A7872A38F71B6E394DCDEE3BC	Character 1 = B (Benjamin)
Black_pony          	75	B3F171A0BDFD067335542B15FBEBC7AC	Character 1 = K (Keira)
Black_snailpest     	75	A0FE543F350B5F32144263E69C8B58AC	Character 1 = K (Kieran)
Black_unicorn       	70	BC8174A07DFE06E31098FCBC0C65C0AC	Character 1 = F (Francesca)
Black_whitebutterfly	83	877DB9204C1A0415909008F68F9B18BC	Character 1 = S (Summer)
Black_penguin       	68	F966D06B27CE517194826266BE9B188C	Character 1 = D (Daniel)
Black_snowtiger     	76	E78CA0A4D3D42F6795B02B15FBF9F3AC	Character 1 = L (Lydia)
Black_sandant       	77	836195952A2BC52BE6769697BF19E6FC	Character 1 = M (Mia)
Good_bat            	77	E4653B3B3F14538FE676CF169F09E6FC	Character 1 = M (Mia)
Good_chameleon      	65	F976D2B826EE4A2136B268A68FBBB0BC	Character 1 = A (Amelia)
Good_hydra          	74	D1FBE84E1FC2F7AE308023D28DBA80AC	Character 1 = J (Jayden)
Good_snail          	65	D0F8DA0E1630F7AEC1926815FC94F7AC	Character 1 = A (Alice)
Good_vulture        	69	9A586E134D21E62C945FD5B17C41D49C	Character 1 = E (Evie)
Good_armadillo      	69	86B393A42F2ECD1897913855FD31E78C	Character 1 = E (Ethan)

Search within barcode row 2 for obfuscated columns that match values for bits 0-7 of each character. (... = omitted results for column matches)

% egrep "^[0-9A-F ]{32}C" barcodes.txt | ./barcodetxt2bitdiff.pl --short --name=1 | sort --key=3.18 | ./bit_diff.pl --row=2 --bits=0..7
                                             666655555555544444444443333333333222222222111111111100000
 Description           VPID  Barcode row 2   321087654321098765432109876543210986543210987654321098654
------------------------------------------------------------------------------------------------------
Black_unicorn            70 1098FCBC0C65C0AC 000100010011000111111001011110000001000110010111000000010  0x0046 0b0000000001000110
Black_snailpest          75 144263E69C8B58AC 000110001000010011000111110011010011001000101101011000010  0x004b 0b0000000001001011
Black_bluebottle         72 2754CB15FAFBD6AC 001011101010100110010110001010111110101111101111010110010  0x0048 0b0000000001001000
Good_hydra               74 308023D28DBA80AC 001100010000000001000111101001010001011011101010000000010  0x004a 0b0000000001001010
Black_chameleon          70 30B040B6BFBB599C 001100010110000010000001011011010111111011101101011001001  0x0046 0b0000000001000110
Black_pony               75 35542B15FBEBC7AC 001110101010100001010110001010111110111110101111000111010  0x004b 0b0000000001001011
Good_chameleon           65 36B268A68FBBB0BC 001111010110010011010001010011010001111011101110110000011  0x0041 0b0000000001000001
Black_orangebutterfl     66 71B6E394DCDEE3BC 011100110110110111000111001010011011001101111011100011011  0x0042 0b0000000001000010
Black_whitebutterfly     83 909008F68F9B18BC 100100010010000000010001111011010001111001101100011000011  0x0053 0b0000000001010011
Black_fox                82 945FD18B2F50D4AC 100110001011111110100011000101100101110101000011010100010  0x0052 0b0000000001010010
Black_bear               77 945FD4B86C41E59C 100110001011111110101001011100001101000100000111100101001  0x004d 0b0000000001001101
Good_vulture             69 945FD5B17C41D49C 100110001011111110101011011000101111000100000111010100001  0x0045 0b0000000001000101
Black_penguin            68 94826266BE9B188C 100110010000010011000100110011010111101001101100011000000  0x0044 0b0000000001000100
Black_snowtiger          76 95B02B15FBF9F3AC 100110110110000001010110001010111110111111100111110011010  0x004c 0b0000000001001100
Good_armadillo           69 97913855FD31E78C 100111110010001001110000101010111111010011000111100111000  0x0045 0b0000000001000101
Black_cow                69 C1802815F8CAC3AC 110000110000000001010000001010111110001100101011000011010  0x0045 0b0000000001000101
Good_snail               65 C1926815FC94F7AC 110000110010010011010000001010111111001001010011110111010  0x0041 0b0000000001000001
Black_sandant            77 E6769697BF19E6FC 111011001110110100101101001011110111110001100111100110111  0x004d 0b0000000001001101
Good_bat                 77 E676CF169F09E6FC 111011001110110110011110001011010011110000100111100110111  0x004d 0b0000000001001101

ID bit  0 to match 0100011010110011111
  ...

ID bit  1 to match 1101110111000000000
  ...

(and so on...)

This process can be repeated to look for columns matching (ASCII) values for each succeeding character, although the diminishing number of longer-name cards start to make it difficult or impossible to correctly identify relevant columns.

E.g., obfuscation set C only has 2 cards so far that have names of 7 or more characters:

egrep "^[0-9A-F ]{32}C" barcodes.txt | ./barcodetxt2bitdiff.pl --short --name=7
Black_orangebutterfl	105	E471793A7872A38F71B6E394DCDEE3BC	Character 7 = i (Benjamin)
Black_unicorn       	115	BC8174A07DFE06E31098FCBC0C65C0AC	Character 7 = s (Francesca)