Onion Monero Blockchain Explorer

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

Autorefresh is OFF

Tx hash: 24ee9f76d0d93ffc603162e5f1fd289d5fbe9c3b45a89154968b9cce6b38a02c

Tx prefix hash: ac66e79d0b12abf0d1158aceb23c18598088471a8900a454a176fb3af99ae1a5
Tx public key: 99e7e25fc783e7d816114ad111b5cbd4e6d4b4d81287ca82ffae6b0758201b26
Timestamp: 1701391388 Timestamp [UTC]: 2023-12-01 00:43:08 Age [y:d:h:m:s]: 01:030:18:44:47
Block: 3029776 Fee (per_kB): 0.000137980000 (0.000040918482) Tx size: 3.3721 kB
Tx version: 2 No of confirmations: 284727 RingCT/type: yes/6
Extra: 0199e7e25fc783e7d816114ad111b5cbd4e6d4b4d81287ca82ffae6b0758201b26

16 output(s) for total of ? xmr

stealth address amount amount idx tag
00: 1e87e1659d076cdbdbb627384d44d8f9c1816cdd0dbf262d79d7d07dc6a00244 ? 84700467 of 122572514 <cc>
01: d0ccd838a3a1f014248fabf4f4638f5338810a427bd3ecf57431f2ad8d6e30cd ? 84700468 of 122572514 <82>
02: 390d0664e42b2a24e2b3567fe8ac162ad4a2fbd3752bd719118e8bbab12552e0 ? 84700469 of 122572514 <ed>
03: 21b41901135a8b953a883542cf45794f16022c7db9409b18f89ec56d71bdc8fc ? 84700470 of 122572514 <50>
04: b00ea4e9a12f799f3a5530b926506f35d0aebaf53b4109d1adc9b833d3fecf78 ? 84700471 of 122572514 <6b>
05: 7ccbf7d7475f4d613f3bb197fe9793ecec02d46eba4a23483f6c003d8e6f0de2 ? 84700472 of 122572514 <d2>
06: 5c2c8816576163063a0ac2cf7697a21413e6ed8631270d936b148ddd5e909c49 ? 84700473 of 122572514 <f1>
07: 907724a3bcaa4b987ab7769f1c922e51d111329440501d6e2fb071c113f31e41 ? 84700474 of 122572514 <3e>
08: ebbff328dd7b50a85065f3c2af6bb816fd8b3fbcf822c9b6d226c6f4553d4948 ? 84700475 of 122572514 <7f>
09: 537326e3fbc723747845ba0ec1fa22a11f4801ebdbd0fd57e00b71ffb4f20078 ? 84700476 of 122572514 <08>
10: ed186b2ff032ec17ab692ca3cbfff37e468a932b6dc034a4a4c2b429741bf67e ? 84700477 of 122572514 <f3>
11: b6217730c422c97fc5b3919f25a53020574acd453191d5505abcfa19ac665fea ? 84700478 of 122572514 <fc>
12: 28d5234a7108cfa105dc0872f98fd60ef64e034d1a8d374ed372849eb4ff3887 ? 84700479 of 122572514 <78>
13: fd68597763ca8c00a192aeca8a44bff1bb7c849899097940fc1ee4ce22841871 ? 84700480 of 122572514 <c3>
14: b775582ea3051c9c51fdd0b23ffca46521727e853a79d94ece80f276635260fa ? 84700481 of 122572514 <78>
15: 6cefcbdb1e0875183245e10dec0810ba67a5c290f4db4f3d11f5b5812b691f5b ? 84700482 of 122572514 <ec>

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 2021-12-06 01:10:41 till 2023-12-01 01:16:26; resolution: 4.26 days)

  • |_*_________________________________________*_______________________________________________________________________________________________*____________________*____**__*|
  • |______________________________________________________________________________________________________________________________________________*________*_______________***|

2 input(s) for total of ? xmr

key image 00: f17b370148a6f33b408a03df8f010990c6da9dcdef2c8b1f5a434654129542d8 amount: ?
ring members blk ring size in/out timestamp age [y:d:h:m:s]
- 00: 9d586d757acec13315d02de236c10ec4bb9c89cf1ee0bc5825cef8ce8978498b 02508613 11 1/2 2021-12-06 02:10:41 03:025:17:17:14
- 01: bc6b378bc37adb8598fc26d14885586e0ed32a7ec760861a1bdaf092e207a3ae 02640494 11 1/2 2022-06-07 11:01:15 02:207:08:26:40
- 02: 63342e653314b7d78d61ab7c256eebe1042af1ecb488c165c245703de93d3bdd 02937274 16 2/2 2023-07-25 05:51:44 01:159:13:36:11
- 03: 339373b29a1898bccf8bf6953360c26fe9e3cb6d42430025deddeb460309a490 03000161 16 2/2 2023-10-20 19:53:30 01:071:23:34:25
- 04: 127828add285dcf7df221ccc6633e80184020a2f7528e6d51e7697475ae2d4f0 03014684 16 2/2 2023-11-10 01:38:27 01:051:17:49:28
- 05: 1eb13411d4d6b2a5c2ea6c4cf335d0745076270f5abe3f33ea4f5c4a862fbf17 03017532 16 2/2 2023-11-14 00:37:00 01:047:18:50:55
- 06: 6993953ee9be5f732d9149438d6d08e831de6fe451330a4c66e1218810a72eca 03018409 0 0/1 2023-11-15 06:10:56 01:046:13:16:59
- 07: 5670de121030f996cdd425018dba76337e4d3547e32249add1908277a9e63653 03018938 16 1/2 2023-11-15 23:35:29 01:045:19:52:26
- 08: 7f1b54445ed8c56771d40937362fb8d3bf4af23da42075a906da77f92435548b 03028561 16 1/16 2023-11-29 08:52:08 01:032:10:35:47
- 09: 8fd6ab335c974757b92f6ef1ea4cc0aacb376277571f061e4c26fe4771e5969c 03029150 16 1/2 2023-11-30 03:40:59 01:031:15:46:56
- 10: 25d1c2753994957fea4929b23697b6f9e2187dc369667783524a49b57dda2e8b 03029405 16 1/2 2023-11-30 13:09:47 01:031:06:18:08
- 11: d0dbd8f4c93de7c2b0926ef90e790fbc7eca1bae60c0f6d080cace75774f0c14 03029433 16 1/2 2023-11-30 13:59:36 01:031:05:28:19
- 12: 13ccdebacfcc72300b2373fb0ff030269488d5cecfbd11d5516e59271393f398 03029535 16 1/2 2023-11-30 17:34:06 01:031:01:53:49
- 13: de5986332752bf8a7ed2b79c8a4a7881b8e15f194d0e6ade275ce1875f572727 03029672 0 0/549 2023-11-30 21:29:10 01:030:21:58:45
- 14: 38d08ca0d5c5e54dce2fbdb0db875beca1d58b44f6f35f26161637cac7dd3d71 03029723 16 1/2 2023-11-30 22:56:59 01:030:20:30:56
- 15: 33f6078034dfc593db77bee7664c2ece2c468bae5e36a598aeac427f7799dccf 03029732 16 2/16 2023-11-30 23:05:45 01:030:20:22:10
key image 01: b43481e91a080ff0f2ead5b84fe8503859c0823c7162c5638fef4a7e5e6597e8 amount: ?
ring members blk ring size in/out timestamp age [y:d:h:m:s]
- 00: 742d12583ea6730e6dc9759801ebc484019bf04a49e2facf6349d78e9be602b6 02945009 16 2/2 2023-08-05 01:28:12 01:148:17:59:43
- 01: 40e0f820841bc80384ecfd5572c1ba4751440d16540841047753e85f70ed17a7 02973145 16 2/2 2023-09-13 08:17:26 01:109:11:10:29
- 02: 2c896dc5b83e5051d2c945145dbf8b68f190b194153b85ec3ea2314f6a5ff1eb 03021305 16 2/2 2023-11-19 06:01:46 01:042:13:26:09
- 03: 4695dc8059fe02faf81948f06088ab46dde02dd45195e506d533ca6fb1e41cbb 03023922 16 1/16 2023-11-22 21:15:21 01:038:22:12:34
- 04: 87e10b40ae43a4c51c0fa7414fc7cd52570abb327b2747c203e2d5b82baa582a 03026364 16 1/2 2023-11-26 07:15:58 01:035:12:11:57
- 05: d49c4a0daed5acb7bef5319de10e23c1686a72b4a593b5eac3d2dccedcc108d3 03028151 16 2/2 2023-11-28 18:29:24 01:033:00:58:31
- 06: 041eb905d93c24dc2b384db9e5cf2a140e1b4cd8bc927ad394351ff3926c45bc 03028953 16 1/2 2023-11-29 21:06:35 01:031:22:21:20
- 07: 267d5a37d6c4e81bdb9f898d0308cebc27597e9c2611c0002fcff0e3ecaf9f52 03029500 16 1/2 2023-11-30 15:56:57 01:031:03:30:58
- 08: d644ef440390affae1ac60913e64b546d0d2963fa52ad33dfe4a2f94f9986173 03029511 16 2/2 2023-11-30 16:25:04 01:031:03:02:51
- 09: 7fd527c567003635d2651d543c472d7541f35043bc4a6307c5bd778caf06b196 03029522 16 1/3 2023-11-30 17:04:21 01:031:02:23:34
- 10: 8b3847dcdcd772c7c4df443021602ca246a24317e9e200db6f6839ec2faa0652 03029601 16 2/16 2023-11-30 19:10:33 01:031:00:17:22
- 11: af04e7ed102c1ea0157a0d7d33a7cf75caa5ee194f34fe5329c69fbae65f9c25 03029666 16 1/2 2023-11-30 21:14:39 01:030:22:13:16
- 12: d4cf2f261696639b06dfe8f4c90f9b98f64712ff55c31e9875df765b15a0fab2 03029699 16 2/2 2023-11-30 22:16:42 01:030:21:11:13
- 13: 5c826e4f3cc9c4f58a7f914279ac73bc5b2f6f5f1ab7acc40719672e9f31d59f 03029738 16 2/2 2023-11-30 23:17:01 01:030:20:10:54
- 14: 98f41270099bfe86f74eb65939506ec563f0018731d31ba412b4a99ad46d7b49 03029745 16 1/2 2023-11-30 23:32:54 01:030:19:55:01
- 15: 98d83e196ff93171e1a875388314b171f45e3f8df17c5c2b239237513d5e68d7 03029763 16 2/2 2023-12-01 00:16:26 01:030:19:11:29
{ "version": 2, "unlock_time": 0, "vin": [ { "key": { "amount": 0, "key_offsets": [ 44209192, 10335581, 22935531, 4727070, 1115731, 214451, 70691, 47460, 924011, 58406, 25824, 2717, 11495, 13423, 4817, 280 ], "k_image": "f17b370148a6f33b408a03df8f010990c6da9dcdef2c8b1f5a434654129542d8" } }, { "key": { "amount": 0, "key_offsets": [ 78079778, 2025917, 3786177, 255520, 221085, 171200, 81195, 52416, 1289, 1748, 7547, 6694, 3513, 3296, 542, 1761 ], "k_image": "b43481e91a080ff0f2ead5b84fe8503859c0823c7162c5638fef4a7e5e6597e8" } } ], "vout": [ { "amount": 0, "target": { "tagged_key": { "key": "1e87e1659d076cdbdbb627384d44d8f9c1816cdd0dbf262d79d7d07dc6a00244", "view_tag": "cc" } } }, { "amount": 0, "target": { "tagged_key": { "key": "d0ccd838a3a1f014248fabf4f4638f5338810a427bd3ecf57431f2ad8d6e30cd", "view_tag": "82" } } }, { "amount": 0, "target": { "tagged_key": { "key": "390d0664e42b2a24e2b3567fe8ac162ad4a2fbd3752bd719118e8bbab12552e0", "view_tag": "ed" } } }, { "amount": 0, "target": { "tagged_key": { "key": "21b41901135a8b953a883542cf45794f16022c7db9409b18f89ec56d71bdc8fc", "view_tag": "50" } } }, { "amount": 0, "target": { "tagged_key": { "key": "b00ea4e9a12f799f3a5530b926506f35d0aebaf53b4109d1adc9b833d3fecf78", "view_tag": "6b" } } }, { "amount": 0, "target": { "tagged_key": { "key": "7ccbf7d7475f4d613f3bb197fe9793ecec02d46eba4a23483f6c003d8e6f0de2", "view_tag": "d2" } } }, { "amount": 0, "target": { "tagged_key": { "key": "5c2c8816576163063a0ac2cf7697a21413e6ed8631270d936b148ddd5e909c49", "view_tag": "f1" } } }, { "amount": 0, "target": { "tagged_key": { "key": "907724a3bcaa4b987ab7769f1c922e51d111329440501d6e2fb071c113f31e41", "view_tag": "3e" } } }, { "amount": 0, "target": { "tagged_key": { "key": "ebbff328dd7b50a85065f3c2af6bb816fd8b3fbcf822c9b6d226c6f4553d4948", "view_tag": "7f" } } }, { "amount": 0, "target": { "tagged_key": { "key": "537326e3fbc723747845ba0ec1fa22a11f4801ebdbd0fd57e00b71ffb4f20078", "view_tag": "08" } } }, { "amount": 0, "target": { "tagged_key": { "key": "ed186b2ff032ec17ab692ca3cbfff37e468a932b6dc034a4a4c2b429741bf67e", "view_tag": "f3" } } }, { "amount": 0, "target": { "tagged_key": { "key": "b6217730c422c97fc5b3919f25a53020574acd453191d5505abcfa19ac665fea", "view_tag": "fc" } } }, { "amount": 0, "target": { "tagged_key": { "key": "28d5234a7108cfa105dc0872f98fd60ef64e034d1a8d374ed372849eb4ff3887", "view_tag": "78" } } }, { "amount": 0, "target": { "tagged_key": { "key": "fd68597763ca8c00a192aeca8a44bff1bb7c849899097940fc1ee4ce22841871", "view_tag": "c3" } } }, { "amount": 0, "target": { "tagged_key": { "key": "b775582ea3051c9c51fdd0b23ffca46521727e853a79d94ece80f276635260fa", "view_tag": "78" } } }, { "amount": 0, "target": { "tagged_key": { "key": "6cefcbdb1e0875183245e10dec0810ba67a5c290f4db4f3d11f5b5812b691f5b", "view_tag": "ec" } } } ], "extra": [ 1, 153, 231, 226, 95, 199, 131, 231, 216, 22, 17, 74, 209, 17, 181, 203, 212, 230, 212, 180, 216, 18, 135, 202, 130, 255, 174, 107, 7, 88, 32, 27, 38 ], "rct_signatures": { "type": 6, "txnFee": 137980000, "ecdhInfo": [ { "amount": "6eca677040dae39a" }, { "amount": "57faf9375cadffb9" }, { "amount": "c93bf11bb5e66a5d" }, { "amount": "c561ef880774b66c" }, { "amount": "29d4b8012dc0c438" }, { "amount": "9ddf2f8b588a89b7" }, { "amount": "cecdafb423ca2909" }, { "amount": "308562e8a19cfad9" }, { "amount": "654eaac590a904b3" }, { "amount": "f7ed1526a0221890" }, { "amount": "21c6d4cb601a7484" }, { "amount": "2623f13f9d7efd32" }, { "amount": "d01358eeee1665ea" }, { "amount": "6897f0270eac60d3" }, { "amount": "417b7d7d8a8225eb" }, { "amount": "d2c44288b3610771" }], "outPk": [ "3c0a14ec2b03c3cbbbc85c531fd353440c3cd9fde3b51ed304367e35f79a67ac", "25666ca5fdc91d503903fe4186adb6bdc81df5a10fa58863a2242f3f844ecf3d", "97758aeee454afd8da6f63cdfe9120ce4c23471f9fbc382326116c1d5bd5c98b", "2da55260335b2dc56d33b5fa8515f77b8b316cbd67f1a6edc197636f57a946ef", "4075fecc17c40bb5995e409ee86509de9065b4f21659c554e3f3828ce594be94", "3b7b96ce328aa2f87cef4db9886454d7d65c1fbf6d4b0bb01220ff2c6c7354e8", "dfc0b31b383edfabd26df21ece4e32b499d7232ab5da5dd292fcd9f527cf3f54", "4798e9f66d378656195148585427f6d59f333cba0c2e55c665f05619d2960af2", "d47f0223af43b7df1776feadf5dc266efe3c82649ea6752b1ccc40bb5f4a46fc", "6ba0a8fe96acc23b9332d4ebdddc53db6a7027ea3b8d2f1e00b1bf44f073d4aa", "9c31964cd6f51b232e6937272f85a9cf7305059b71d73e7d334dd1818c0b512e", "a992ab3c1252456cd7782d094ee9d2db0ab57cd639fb2cdec4344d4ddeb96133", "15ee036d8738072ae9dfe34338bb6cc9ce36e123e833fc9f16cce6895f22c424", "9a6fabe0fd6d01bf75c88522a24e02435c2b8dd54e119ecf413fb8302ffbaeab", "474907a5f780a296078bc3426cda94acc956b91579fb60caeccbd21dc15200cd", "a0b19140ceb50fcca88dfaef07d08607f00e1eabdbd5f99e75a155dfff2f73d0"] }, "rctsig_prunable": { "nbp": 1, "bpp": [ { "A": "0d5c665d126fafe08492986a92fcaf52ca184fbe5428fc332b54fa892df95b25", "A1": "b546b2a660409e5ab1dcfa6a473a4a4b9be99a65d4016dee38fabb23c2eb24de", "B": "dff82b94a15e68390f4ae6ca51d49f745e4768ba3b603e1ac49110a39b8d2ba9", "r1": "4f91f08ec6b247a75a77b82fdaa07ba2d3632565b7e3d3c569bb35da70d4f20d", "s1": "fc2a3b6653da3d7aa6e0d28153ad959540d7343e85fa000a4397ed9267c72a0f", "d1": "1436a6dad645bdba2829e3600ed2cc9c25a095b2a976184324df1e67aaa21105", "L": [ "9a04f7ebbac6ddcca80316e182c42992c34e6a1f648407e713f12d90a21b7686", "a5426f7be615c6f0c84a82acd025457672738d502f2104d033e68d6bedbdb7ea", "c0726d2936a32759641a986b979bb9236103fa792c680307ced517fb0d9c2f55", "b52cd551c715d02357d81dbb8f92e45c213f2926d184dc798a9b08d327bf92fd", "a89644ad378a9b23211409cff661e8a561a25139012015be47bc926054aa1951", "999214e79d9f284d22b602d75c549417e514028eac8068b7367673f16f4d291b", "c9f093e27b4e6dfc5a9f86a2e90380b127a987b6667769e4c17ab24a2ace3cc7", "d04fdf8d28876707baa8b728c236bbd035946d89e865f9acc6cc7b6dcafa16d3", "5329c5ef9611a4fb466d23591a23f5682a4d1c5f09e77f3fe5f99bba5e02c17b", "fb1e71b018d8fffbe7114874be68b71d3063930f477955856105769029a0db28" ], "R": [ "cdf056c58e086d016bd40c2bbb33998978e23de3baec544c86c70cecc2f8221b", "c2e26ea4579d10ed22c251d96a820b06a93611f8b78228069f5a013ad20ba840", "676179bdc432c6a32b723622a8eba5e2dec8637fd5bad37a46657ad9862e2ed1", "ac6bb1bfe9a639a66cacadf37eee051069c4b061c15a439a8e276c6bb45cf459", "8729b567422e6742226be6be7a9765aa07ffad82db9f661995589061e35e8110", "36906ec4db2d60f5e64321e9b1587029a8085331db4ad2ae1b8747a700a3c52c", "ea848e8eb798a5ffe51610f93f4c00ccc1ee52123b834c4a81b728eeb8915be0", "11876f33e57e46622bdef98b3db0195bf40022b9b39f7273c8238d80f9682b1f", "a74f04c2c22f087cd2e59252685acfc96418ab5151dd99763224a5bf09f13dfe", "b5bceefee0571be0a794c80cd9f9177ed89f008d63e0c7b6baf9a18004f4c31c" ] } ], "CLSAGs": [ { "s": [ "d95ddbcd9e62bb6e5bb9f53a2390e78bb4a80e56800bb2fdb8c1b23a60d1e701", "323a2254cd9ff6aa1efbce76dba4d0937d5e183ea958c2e0ffdffa6403dec008", "73cf0175b268e280689097de85404dd309d78d3819d0ea7cec6eca79c3762708", "ddb8df095bfa588bb6f8682a0071fe5d1dfe4ce2474e7a78e2159f26649b540b", "75818e1a4f615de547a190efaed65c95f75a89be717fe57c7a86482202b81f0f", "d2123fd37a23a939cdd778ba8e1cf78111ae4f7964fcab9269adaae0ea7d9504", "0817c930bf5cb37173e526a4f047af8c00aabc37e58d6ed658eb6b1476674f00", "fed6ccc40da2528d0b946998f1be1fc6b19e15f031d082e6f34de5f26a9add0f", "9532de4de3d6715b73223748e1c26e68ae3b7742463efb0af1f8d2c8da3ee206", "f9c895216a0fd6e39e77ca98b69113655cff36932f0c08aa3e1c294b85b4b201", "ca21ddc538e7dca9f528aabe2d2aac3214dc4e670c3f81c351cd23cd573aa606", "b0661d4d360ec0adffcdaf0994cfdc989cc9cd186f9651f03fd2f0bfeb118606", "ecdd3669f5536a5af796392e8ce84b276e639ac75fe710b7c127ff4a68f7e808", "d4b583a5f440a4fecd7a49daa6ae0df01d5ac970a1cc760a9e7d88ec0e09d202", "a9876401456fa90dfb1281b784dbf2524f9a7a46268f511d3f9ed5257a327c05", "1255b701194aa9746afad6e1504ce4bb12bef6618996ae096f550dbb13168907"], "c1": "3ca356e50e1f057370f120d083e54f2194c168073fb3825aae695c0feb77180d", "D": "3d4fe2d8db6ebb9f5e0963c55210098f29dd99556f01b77dee72eb1daf7055d7" }, { "s": [ "391e4af564b8b988958cd042cfc8683818cc4f3e2611c8c548b835e48404bb09", "4787a33b47bbab1064fd5459661164bd1aed2e2dbdebac982614f8c72d9dab04", "97a5824b259b5c1ae946709762389fcc4b65fa3a5e8b743d0050818c14290000", "805809569920c3a6c28ac724b8ceeadcda59057a7c6f96cd9bc9d36bf1c90104", "3935c93381a3bc1ae0fd75fd608c34d06873644994aa582d20cb78fe1e14990b", "23c8e9412cb5ddcffe9741f1f099bed90f4132e4b9521d80d4d5bc3e8eec8704", "7743d9f37fff7f19f1498ae17bc999b19cabab2c3567d781214d47b3faa8e70c", "624d9eb4e062c5e01481c10b8a5fce5ea76451fd76d56efbb8c589c2f9168b0d", "e8dcc5b56c536c8752e84a9a4660f93ee3db2181dc6606f6a1c4b139d534d80c", "496571199578e9ba7c677797bab6cf196ac9b14c7e4e31bd89c00d531639f701", "8cbfe2b14c3fb9f7f9963b45b824a0512a676be7af211b1cc53def51a1eeec03", "f9f715e1ab891513e6f3bd424dc3ea5e7f8e100bc37cd76868a494e54abcbc0d", "5c23fbf18c9ac32d728689ad2d19817e195b03f1a4dedc369233f0c326c68f05", "c759e6b6b9071ddeee3dde98bc1e87fb8ea06a9d5562964a4f5f37920c20f203", "ff37f8e5d3c8baf5890e62498b3ec7ea6693453f9680ddd38f2252675174ae0e", "d0da99bfb60b78c43f94050d13b5b41a6909b82ee53e50e9d8c46474182d830a"], "c1": "b6b357785559a9132d8378c60615372db923aab20a68bbad34fbc4353959910b", "D": "169ae29aadb505e72820db4f5efb12d892ee7006617d91766ccbd8f89ca0e674" }], "pseudoOuts": [ "e6209f9ff085d641330bcc9f590b6b8c6df59c674bed9860eeb39052616884e5", "d21a17038c5b625a7b51b73bd2df018950046380e7e95996a31a38c7210151e4"] } }


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