Onion Monero Blockchain Explorer

(no javascript - no cookies - no web analytics trackers - no images - open sourced)

Autorefresh is OFF

Tx hash: 86d9b07a2c674c484882c1d0e44db36cda78cb61e661bcd3a15438d36419a4b1

Tx prefix hash: 8937a2634cccb77e708b9bc2a05230fff8f96c089c37cd6bdd936ae0b124dc91
Tx public key: 831ffbc6e811ce99aae66689d939867b0789c87ff8cb5ef1f4542cfef3da938f
Timestamp: 1684586948 Timestamp [UTC]: 2023-05-20 12:49:08 Age [y:d:h:m:s]: 01:216:23:50:21
Block: 2890002 Fee (per_kB): 0.000137980000 (0.000040942196) Tx size: 3.3701 kB
Tx version: 2 No of confirmations: 418540 RingCT/type: yes/6
Extra: 01831ffbc6e811ce99aae66689d939867b0789c87ff8cb5ef1f4542cfef3da938f

16 output(s) for total of ? xmr

stealth address amount amount idx tag
00: b03bb38aae0243e2b386683835d5b36a3201050985ab0a20b449e7c329ec56e7 ? 73797045 of 122094897 <1c>
01: 9a7a73506279c3d7fd011ec4741ddbe5711ba9fa586cc32b515db7e49b6780ba ? 73797046 of 122094897 <68>
02: bc23d65b0a2c21148dce7964e8fbb105c05349dc38cfe127ba6a13dc37a50c44 ? 73797047 of 122094897 <74>
03: b68ae1f184c0332d20c9c4ac6d452390f841a918a3ae07463040ed0aa2449978 ? 73797048 of 122094897 <b9>
04: 0e2338a25e4c66e50d3dad5f6710ea80c7b5f1557ccf8e4a518daed70cea0e4d ? 73797049 of 122094897 <f7>
05: 37407b2d7350a65c016bc7447c2edc9ca23df788336cf4676125fc492c4c8d87 ? 73797050 of 122094897 <fe>
06: 30a0c96571d638c697740e90c4e132184f7f10c863ea391bea274923791f6b1d ? 73797051 of 122094897 <72>
07: 61c3df35509fec592b826020a8fc48ff47680f5a0a822f0e57fb005e8e3b3655 ? 73797052 of 122094897 <2f>
08: 911ecd978b1b57f06cfeeb3dd6d4096ac52ad1e65541bd2d6828442e6c8661bc ? 73797053 of 122094897 <a6>
09: 84a772cc4828b376bb2e2d46fc885353214ab822267597dfd1be207352c219f2 ? 73797054 of 122094897 <27>
10: 2d66774ebabe547729389468db362249dc19fa4e844db0eb8a5372ad413be58a ? 73797055 of 122094897 <76>
11: 1becc9d60ae7a603cb94bb918e3067d613f233f68e98ba23c2854580d2152b85 ? 73797056 of 122094897 <9f>
12: 23e49f6394edf51105ca0e854417792b783ad5d50b11e012b53afd59c1c53c13 ? 73797057 of 122094897 <a0>
13: 7fc7ab0f62118b745675ddc67bd2813584627fb896308508725dd2118fef6424 ? 73797058 of 122094897 <8a>
14: 97eedd89e1e50dddf780d4c2132ef4a8ec99bb8d8b0a564e889f297dd8e8f528 ? 73797059 of 122094897 <2a>
15: 6c4bcc65ef414e0e1af9deda212f6ccfb40d92a3b49b14db240331af90f5bd8c ? 73797060 of 122094897 <cf>

Check which outputs belong to given Monero address/subaddress and viewkey

For RingCT transactions, outputs' amounts are also decoded
Note: address/subaddress and viewkey are sent to the server, as the calculations are done on the server side



Prove to someone that you have sent them Monero in this transaction

Tx private key can be obtained using get_tx_key command in monero-wallet-cli command line tool
Note: address/subaddress and tx private key are sent to the server, as the calculations are done on the server side



Inputs' ring size time scale (from 2022-10-26 16:17:38 till 2023-05-20 13:19:48; resolution: 1.21 days)

  • |_________________________________________________________________________________________________________________**__*________________________________________________****|
  • |_*__________________________________________________________*__________________________________________*___________________________________________________________*___***|

2 input(s) for total of ? xmr

key image 00: af1f94705ec9ae15d70820739b9af0bc7538da4f2ab9b78be6082a6f26da3af8 amount: ?
ring members blk ring size in/out timestamp age [y:d:h:m:s]
- 00: 2d1471f593dff603d81e28e31c42ce9db2393c64ba706bf9963aaacb8a10a1c4 02840128 0 0/549 2023-03-12 04:49:09 01:286:07:50:20
- 01: d7854efb7866b79c36c15e8b074d43c1ee2f8c256acaee7946da0d469e09d70d 02841761 16 1/2 2023-03-14 10:38:52 01:284:02:00:37
- 02: e0e761d6141d51af4eb65c9cb49833237899a6bc1c3be3f09784ed1d2f968f4f 02843940 16 1/2 2023-03-17 12:17:00 01:281:00:22:29
- 03: 5a9e5e8ebfb55b662617f95a628466976e6bfb4daeb5daf8341b5236d4cde6b9 02886823 16 1/2 2023-05-16 03:25:17 01:221:09:14:12
- 04: db3a396aee44cdb1b9f02c4433e2f720e0cba52376c09e249ad1b5222bf03c2f 02887860 16 3/2 2023-05-17 13:58:14 01:219:22:41:15
- 05: 47ed87b3c8cfc8266c681d2eaf4f6b9e533bcd52f2693b65835af628171a9463 02888155 16 2/16 2023-05-18 00:07:36 01:219:12:31:53
- 06: 7ce0f6c30841732ad190487169d611695f0e42d5f1bcc28afd8824ea48a37ce5 02888990 0 0/34 2023-05-19 02:47:15 01:218:09:52:14
- 07: 97ca4430b880725b7724fc98d15d9308f04ea4cb40ad490acf91a39a97b14a1b 02889040 16 81/2 2023-05-19 04:19:59 01:218:08:19:30
- 08: e7c2f7b13c865230e877a0cfbd45e80dfd2c07edf5bb9d5b6f54194d54262aab 02889097 16 1/2 2023-05-19 06:50:40 01:218:05:48:49
- 09: 0559cecde09c7f574424dca8f09d9d80b58f7428416cf6ac8b20355ffba5c029 02889493 16 2/9 2023-05-19 20:29:52 01:217:16:09:37
- 10: bcd95a639cc3beca7f7a2664d412573bae396d292490ca1f595085079e417150 02889497 16 1/2 2023-05-19 20:45:54 01:217:15:53:35
- 11: e6f5dcdae8310a51ba2a86fe23cf3ad01ddc9af4925c15abb7f5ce243f6f577b 02889615 16 2/2 2023-05-20 00:26:10 01:217:12:13:19
- 12: 241c1274ac64c32df3b1a48917137405b27bba07ee5e68a60d7487175443cf54 02889808 16 2/16 2023-05-20 06:42:07 01:217:05:57:22
- 13: d4d27f918a34c6759372b20235801f8239111cb3ef69db0acb50add9d14bbc78 02889898 16 2/16 2023-05-20 09:30:37 01:217:03:08:52
- 14: 1adfae90e1ad4f5958f262358cf827520106237f6a9f743f2e4f6777fd3f9748 02889976 16 2/2 2023-05-20 12:09:17 01:217:00:30:12
- 15: 57c6fed71ffb56aa21b51f4916a96764e0874c2823f264504e0cc6cb72c26e1d 02889979 16 7/2 2023-05-20 12:17:22 01:217:00:22:07
key image 01: 2a3b3fa6a034a1dcfbf888d6717b340ba4cbaee3d80839d045124887cd4676ae amount: ?
ring members blk ring size in/out timestamp age [y:d:h:m:s]
- 00: 86e9964fb4a4d3331bb1484677982f8e180efd62108656e2c54dad873a5b6be8 02742078 16 1/2 2022-10-26 17:17:38 02:057:19:21:51
- 01: a108f63976bf04e8c153154532baf8e0c51edbc2e9014c9f3c7b0ff2d7007eab 02793795 16 1/2 2023-01-06 17:53:58 01:350:18:45:31
- 02: 74244883c25ef23a648447df8e9c1e06262d5dd1a2341d71f38e4bb5b0fd8f1c 02831630 16 2/2 2023-02-28 05:58:03 01:298:06:41:26
- 03: d93675f288bd1051fd46a5f19f451cd780f3d66e4b51272350e169941efd6d5a 02883969 16 2/16 2023-05-12 02:48:35 01:225:09:50:54
- 04: 0010f22ee4059e7d48a6ebc7ba3b962d44f275a1265b4bc1499d83a9d878a84d 02887860 16 2/16 2023-05-17 13:58:14 01:219:22:41:15
- 05: 239fb33f037b410dbfb091bffc6ed5ad0d7cbb6862d5260076f0fa7c2dbfe5a1 02888493 0 0/32 2023-05-18 11:17:02 01:219:01:22:27
- 06: 73d1427a563a7ce26fd69be4b689a5249867098133ec25ee58f098f5f62dc8c8 02888883 16 1/2 2023-05-18 23:39:18 01:218:13:00:11
- 07: e5e0634fa3615a7eb7f54c6f907a2948a40b32039d94c5735f839eec7c162132 02889298 16 1/16 2023-05-19 13:26:41 01:217:23:12:48
- 08: 8f79dc0c9fde8852ee222554e2b3590ab570eb7daa1fa60d93c95be041419c56 02889338 16 2/16 2023-05-19 14:47:37 01:217:21:51:52
- 09: 04a0cd6d0d1e3a802f1e1e78115921a51d99dc6ac80eb5c43b3ad0959f2ad30f 02889354 16 2/2 2023-05-19 15:40:10 01:217:20:59:19
- 10: fec72209728e8d29575d9d81fd4c2819faf225b9784091748273f773ad1516c6 02889458 16 1/2 2023-05-19 19:18:56 01:217:17:20:33
- 11: 6ee36dce1075aeeec5b73c549a4e9ea42725930d0a92168adec1e3995657ec3b 02889841 0 0/504 2023-05-20 07:43:21 01:217:04:56:08
- 12: 024a65366146a92ebe11316c799fddb4e224cba0cc4dcf5e7957b9d76a09a09b 02889841 0 0/504 2023-05-20 07:43:21 01:217:04:56:08
- 13: 651f2e134a728a4634c0099d6eda663b48513562e50e8ffcba34c50aa1abf205 02889911 16 1/2 2023-05-20 09:57:19 01:217:02:42:10
- 14: 2c94d711769ebf0ceb37ccbda576be46100e09e2acfa690930f45fa0b957de2e 02889970 16 2/2 2023-05-20 11:58:02 01:217:00:41:27
- 15: 7420fff49ac34870ac28e488847c7677fedf15b8242ced1579cd021e2521a08d 02889982 16 2/2 2023-05-20 12:19:48 01:217:00:19:41
{ "version": 2, "unlock_time": 0, "vin": [ { "key": { "amount": 0, "key_offsets": [ 70014289, 112089, 157213, 3225269, 99382, 31068, 71034, 3764, 4247, 39376, 538, 9413, 13194, 6626, 7100, 304 ], "k_image": "af1f94705ec9ae15d70820739b9af0bc7538da4f2ab9b78be6082a6f26da3af8" } }, { "key": { "amount": 0, "key_offsets": [ 63239553, 3771722, 2433382, 3809419, 353963, 57572, 38148, 33543, 4213, 2850, 10573, 28022, 363, 5428, 5413, 869 ], "k_image": "2a3b3fa6a034a1dcfbf888d6717b340ba4cbaee3d80839d045124887cd4676ae" } } ], "vout": [ { "amount": 0, "target": { "tagged_key": { "key": "b03bb38aae0243e2b386683835d5b36a3201050985ab0a20b449e7c329ec56e7", "view_tag": "1c" } } }, { "amount": 0, "target": { "tagged_key": { "key": "9a7a73506279c3d7fd011ec4741ddbe5711ba9fa586cc32b515db7e49b6780ba", "view_tag": "68" } } }, { "amount": 0, "target": { "tagged_key": { "key": "bc23d65b0a2c21148dce7964e8fbb105c05349dc38cfe127ba6a13dc37a50c44", "view_tag": "74" } } }, { "amount": 0, "target": { "tagged_key": { "key": "b68ae1f184c0332d20c9c4ac6d452390f841a918a3ae07463040ed0aa2449978", "view_tag": "b9" } } }, { "amount": 0, "target": { "tagged_key": { "key": "0e2338a25e4c66e50d3dad5f6710ea80c7b5f1557ccf8e4a518daed70cea0e4d", "view_tag": "f7" } } }, { "amount": 0, "target": { "tagged_key": { "key": "37407b2d7350a65c016bc7447c2edc9ca23df788336cf4676125fc492c4c8d87", "view_tag": "fe" } } }, { "amount": 0, "target": { "tagged_key": { "key": "30a0c96571d638c697740e90c4e132184f7f10c863ea391bea274923791f6b1d", "view_tag": "72" } } }, { "amount": 0, "target": { "tagged_key": { "key": "61c3df35509fec592b826020a8fc48ff47680f5a0a822f0e57fb005e8e3b3655", "view_tag": "2f" } } }, { "amount": 0, "target": { "tagged_key": { "key": "911ecd978b1b57f06cfeeb3dd6d4096ac52ad1e65541bd2d6828442e6c8661bc", "view_tag": "a6" } } }, { "amount": 0, "target": { "tagged_key": { "key": "84a772cc4828b376bb2e2d46fc885353214ab822267597dfd1be207352c219f2", "view_tag": "27" } } }, { "amount": 0, "target": { "tagged_key": { "key": "2d66774ebabe547729389468db362249dc19fa4e844db0eb8a5372ad413be58a", "view_tag": "76" } } }, { "amount": 0, "target": { "tagged_key": { "key": "1becc9d60ae7a603cb94bb918e3067d613f233f68e98ba23c2854580d2152b85", "view_tag": "9f" } } }, { "amount": 0, "target": { "tagged_key": { "key": "23e49f6394edf51105ca0e854417792b783ad5d50b11e012b53afd59c1c53c13", "view_tag": "a0" } } }, { "amount": 0, "target": { "tagged_key": { "key": "7fc7ab0f62118b745675ddc67bd2813584627fb896308508725dd2118fef6424", "view_tag": "8a" } } }, { "amount": 0, "target": { "tagged_key": { "key": "97eedd89e1e50dddf780d4c2132ef4a8ec99bb8d8b0a564e889f297dd8e8f528", "view_tag": "2a" } } }, { "amount": 0, "target": { "tagged_key": { "key": "6c4bcc65ef414e0e1af9deda212f6ccfb40d92a3b49b14db240331af90f5bd8c", "view_tag": "cf" } } } ], "extra": [ 1, 131, 31, 251, 198, 232, 17, 206, 153, 170, 230, 102, 137, 217, 57, 134, 123, 7, 137, 200, 127, 248, 203, 94, 241, 244, 84, 44, 254, 243, 218, 147, 143 ], "rct_signatures": { "type": 6, "txnFee": 137980000, "ecdhInfo": [ { "amount": "449204e94d860332" }, { "amount": "e08d7004fcb3c0fa" }, { "amount": "d04ea76ef28a422f" }, { "amount": "d9669d5677acc89f" }, { "amount": "6c91c125bea4c42d" }, { "amount": "c6cf0527a6ce2812" }, { "amount": "c07285fa889e46ce" }, { "amount": "ce2587032bd3da05" }, { "amount": "f97b653718257ba8" }, { "amount": "741f30ecbe349b2a" }, { "amount": "e442c953089eb3da" }, { "amount": "46ede1771e49e860" }, { "amount": "cab1ac2a3abeb653" }, { "amount": "19faf0eab97271f0" }, { "amount": "12d04e080e88d044" }, { "amount": "37a4ec63589ae035" }], "outPk": [ "3135032a37cf9d7fd35b0c914c1dd9bd81dd4ebff455357b48cfa9e5a8954b7a", "015c1811b1d1554bbf4cd68d1a6bd0f98b097bf036861b9c971d5452fd2c758c", "a9703a1d515cbdd19406d19a56b1cf7d4d2ba62f8ed139854922406ce54c18a7", "54480da1660b0ac1a1afb0a54b78b4eda47278aa1b5a1ee3bf70706eeef4b9f6", "f7c4f898772d0989ebc4fd5c78d4999b6e68992500fbd524d2defd99e525c601", "bb8fc955d3e6051b16c08300821fb7267a5d982b93fffe23de8e0a80ebef3db8", "b7c2bd6ec73ff2308d46fb43a4fff13185d25bc618c84d2fb7d9d781ee9071d4", "3e255828881b5b6867797c2b470853f169dac86be5a596247b084a842320585d", "46be8a83231cda2c52e6a1db9e0f4307a0849e3091570ccec8b3e2bc2070532b", "e2586bb07897486b2978dd4250bb1316d07a782d022bf84ae6b8a06223c0ba93", "76166631fa8402597d40c2a6680e550261a8cefc5b326bac765687ea4c51c4e5", "5763637b2432d10fbeaf264c76fbdcd815a68c5882e470add388992c41c8e523", "35ce5137d75160a6559c5535873e359c8d87b0d3b4e50b1b661ca4b5c9d6dc6a", "6b3570547990baf02a715aa6ae401b0838a051a8cd26952189e1ce5fd91b2a8e", "929e2c8ad8b5c3d9cf4852e96c578734ce3e8a4b12f5b8f05c6562ad8be74949", "5f86854273be9a7fc79b5fa57f5d1488fc0f028d798ebddc6b9dc352410549f1"] }, "rctsig_prunable": { "nbp": 1, "bpp": [ { "A": "1abc2bb7ca479762eec9b48f1ac89cc70bb2ca8c698ec1de1f3f8fe537be94a9", "A1": "030710858b9850d662bb10bd737155182e4a10ae80ef4ef93876e046ccabb646", "B": "48edddcebecbe84e495cecdd4d2c925b570b6753332899ecd7b4ad95462a857d", "r1": "cf968ea6a9a45de1649a4ffc9d16ae7d6488cd02982b4f5d2034cce94fa73505", "s1": "a1214468a46da4cf1e81e4d233965f01ae7ad824257ee2df37aa7ba043893601", "d1": "e1f671e871915f9814175998500c6c32c81caf913c5c9268908a898d126a1f0e", "L": [ "d385ae90b9270275f1fca0ed502584934ee5941b3b96d286765b692042f254d5", "3b88a1b811daff49f1d05e0a204ac6dfd008c4a3c098786ad96d97ea50b9caa7", "24c968dbdb910ae89fb91d7c53cfc8393860be421da74a3ce322028280b7c6d1", "ba5d43687a4eb153bd76f58db97fdd5313e414f4025a3f37a18ef41af718b683", "d9f1bafb1ab983d76a64e3eba423582dae964259f553a1a7ff12e49acca09ccb", "1ec46164c3c170ba853328201972ed838a05a35cd3e22b13c88d037454fbe779", "53e9e335be1cd3d8b7c4190f45c7cfb4e9f31abd3df9bff7884cf88c63fac31e", "05abafeeb61844827b69ef0d16573011608cb48df0b5113b144eeeb5bcbba57c", "1e5271c6b383aebe4809c21a6d4507fbe683bcfbb65adcffb000c94762cfdee9", "a4c382a0ec62140995a1729217410772cc8b3f62165fa54b07e47de407c1e558" ], "R": [ "2ee47517bf901d61029e81459d15e02721b346fe1dfac98a7a26fc7e3f812463", "47d3d3b3f4c8fe8e50c57b1a29fe473ec10ed1d9a365021726f6ad90cf433349", "fdf034450e4c4b19126f034427bb27fb6e159759e4f2e9b92d5b5191517b95f0", "6d06f6bf69ee0decaa629aa7d7e4121b69ba107f31cefb6f09cfcc7a3412e827", "c4a591957a5ade71a55e8805f97109184e9d01cf250b02f49a1b33006002fb02", "eb9c0d298053c2b003dce8e59ff6c8d07ac777dd804f1ea9f68e88d79c922519", "eb8437a6587b1a3645e98653921e060dbb904543887b85ff6624a5debc610642", "eaad2c9036eaed82d85f13faa9e3fd0b47a576bc842e801729f15da2f2e55863", "89da4cc76a203f189dd7435bc8ff8cc1bdc944ae47d096f4af46674eb3a08d49", "88e7195ddb3c559c6dd51b4d5abe5dde65fecc27af055699f5097720aec02a06" ] } ], "CLSAGs": [ { "s": [ "bd3ea86258b0bd98338af4d0e58c7293008fed5abe928983130849f223f9eb09", "9d706c3ea0bf006c8db1829319901b1fcf191502716b56121c800255e3813e03", "102c84c68adedf5a2fc7a63d42db466d7ac2e6deabcaeaee2243b1c930176f00", "f679d578a610b74db99cc0145960d9a60b43a0c56da56fe2491961feebd7d503", "1ada4f0f0cfad2202ae5d79a7bfa697ac4cd2bd471f5a3f93b4ae9d16f98fc00", "c5b60c0d2908de3d6dc40d66f978cad1d7c5847050e4da711e356a21072e880a", "0d21fc021efcb89a5b167de0a0ee1eb02373e1d9e17dbaceeea73764c738b703", "cb9a9e16f25d32c7abe7f2dc39577ea17c5517feb637955c6bf7fdb0fe229908", "7b28beee3573efb7b84ab5f16f80f00f230b73d7ced069c6144fdc6935f84909", "88a9f3c809cc894c88f2d1a8ce8b24db10a0a7e1fff7b8aa1336932e24a5610a", "6f31528c9ad4e732ba961c73fb680c44a4c670be8ae651db9ca9a0c4241cfb0c", "4678540d3c924d73fadc63928866718da35ec45436f3f4235ba03db80d7ea405", "51feb88d6d1363931ed4b2a56a5ff72d0ad56d2b1a4978ecf4444e48cb02470a", "0ba23d8fd310bdbde80d0dd28d4f522636a4fa2005c61e0f5e471ee65e0c2004", "c1ae83cd70d34f4b46954634f1a07bb588bdc518d4174fed48d9cb2bed3a480a", "8c10ec33da2d43a50c823faa707fba32e7148dc20f7f4777ad522f6d03b73a01"], "c1": "952d3cc1cadac2884b45c60f366f6a0f992eb5ce3b09969dae6631fd626d7900", "D": "200a6cf70f5679cad4a2af860eddde156c1b1670393128514c30c2cb0571c258" }, { "s": [ "dc57087ac3f3bf0e66b4edf839cb23aaed60eaad41842088ad7768351135630f", "975e5e2b25957e8932ef9981ad04878fcaaac74bcfe87e885c071fe7076eaa09", "8485532793d850886e63e338bd3c78cda5dc4b7b9be873fa2b62655831679703", "41ee6ab505e27dde0af04027a1a1613b514c7f22da2048df2ed070ca58445703", "64f204a2c8e42ccc25345f174eaeb92b2ffe218bf6d03421c035afd246b73f0d", "a5db7d7210af36b482c2d1ecb47e422acf6a367e9eb6b973bd646d66906d2a0a", "c724c4b499188860e3782ad1b2fd0442d11ba79b426c83558c7342c8c0b1ee0e", "642a64b3e8539c4e0c1dc9ad4c34454c46b7e1fb28e89dd3a479d6cd31fde605", "1e417f276f1b71266b60aac1b4c5c40c08a69b68de73fbd1d8f9eb70570c5c0a", "76cb79522a807a7c1c7f0e648ff1ff0180f99632115e7e082c86689fd6d6c307", "b765bc8d6df24462fb77353fda63ef47f22583eb7a2e11da3a7cb52cebd9e403", "18e667d0fe164b8f75080d819995e40c659af511dd361be79f4c9b2dafe8f002", "aaef236a4d3639ae5f8650bd79b1a059d707a622f1a8463c574f2d41f1f3580f", "47043f22885f26830824f0f1e6eeaf4da52b56f578ca1d017fb0efd78fed860d", "020951a076b8a108820db2191735af02f0590b455193e150ba9b9fd3081f6d0b", "b88fddd9de67bc7d9e0f656aca2e364f17e76824a968bef3581d9ca2f0bb8709"], "c1": "43679e6651e4dbd2332a0a82746fdef6dcce380373238d44e8a9028963a55d0f", "D": "0be618b9eacf910319ae7e6a06a61608c0e0a5f7d35f6e0b68a44f510ee2a2a4" }], "pseudoOuts": [ "ddaf13afc7962631ec23f10d734105d63c3a7e95305b6b7e5e59bbde47d86719", "001a498461dc91ba6193c1d5fbc8126c7a61732774c0b498b184a9d4b04b521e"] } }


Less details
source code | explorer version (api): master-2023-03-28-d669720 (1.2) | monero version: 0.18.2.2-eac1b86bb