Due to the adjustment of the company's development strategy, CloverPool (formerly BTC.com) has started anew and has been fully updated to a new brand and new domain name to continue to provide high-quality services to our customers.
USD($)English
Summary
Status
Confirmed
Input
1.54457935 BTC
Output
1.53998292 BTC
Sigops
205
Fees
0.00459643 BTC
Fees Rate(BTC/kVB)
0.00070036 BTC
Other Explorers
Transaction
Input (1)1.54457935 BTC
Output (201)1.53998292 BTC
- 0.00032486
- 0.00059551
- 0.00800575
- 0.00032501
Input Scripts
P2WPKH_V0(witness)3044022062058f1b9068540b7ecbb0a6fd4d33d5dc8d147677c2417819a866e8aa38e2a9022061185fa02d05d9b5944838063cd4fe8522895a2386876b5b78eb6d8ac64a92b40103dc359bf2cc046ba3e2f32d846f9fccff1fc42d79fbe0fc589b8f73fb1246232dOutput Scripts
P2WPKH_V0OP_0 5db6eb5d405f02d93b9407d5fc3d0c7ffbde5b03P2WPKH_V0OP_0 7f9c4f28f073ab415eb4d435e4faafee3e02ecbaP2WPKH_V0OP_0 1dd2d098531c45da9e55b53280d4a6e7519dc1bbP2WPKH_V0OP_0 beb4931ffb7951ff53afe3481a24c32cb5f2cc69P2SHOP_HASH160 5f196fdc4b682f21cc0a014a404d2e86d0265c25 OP_EQUALP2WPKH_V0OP_0 88ce8eeaf259fa77a4ec0958ff4df00337bde0e5P2WPKH_V0OP_0 7e7b6354186bc20043ac7900440710d400bde79cP2WPKH_V0OP_0 9984ce3c1e078b9fc28e1bbe1a8b27b54301db0fP2SHOP_HASH160 525afd28d49de11ce0122fbbc64fe0ed753d0128 OP_EQUALP2WPKH_V0OP_0 665958c8805dbbad3b36a6ef125586c658beff10P2PKHOP_DUP OP_HASH160 4c4226438d358645e3865efe4d927124dc6a8a59 OP_EQUALVERIFY OP_CHECKSIGP2WPKH_V0OP_0 7fdbc53be52bddc52d7d5827b69d83828deb590eP2WPKH_V0OP_0 24bfda01b8e2e6a559e47c0c78e6495376c1bb2cP2SHOP_HASH160 7b058a851236bb5d5b0006caee79d61969579feb OP_EQUALP2WPKH_V0OP_0 fff2857084b99e744467f1835033980f910e1841P2SHOP_HASH160 d66aedc31f059facf41fa9197e9671bddf805b0d OP_EQUALP2WPKH_V0OP_0 f1723cbc7ab7af510487847e2b228143a0e6ef72P2WPKH_V0OP_0 6a1a5eeed6a1edbf4ca06d1c36b0a1f754a51454P2PKHOP_DUP OP_HASH160 7c4ac0227b171e9b37ae540b4a1295ef043dbd1d OP_EQUALVERIFY OP_CHECKSIGP2WPKH_V0OP_0 45dc6bcddc07b6ea6fe66b77218f333edb103102P2PKHOP_DUP OP_HASH160 9f6f7de0425fdbe8cce42fa9316d4c245da592d1 OP_EQUALVERIFY OP_CHECKSIGP2PKHOP_DUP OP_HASH160 05c5374ac366549f231016297d1664835603d732 OP_EQUALVERIFY OP_CHECKSIGP2WPKH_V0OP_0 36c8bcfd3b5d0803518e9eed472fc650ed293cedP2WPKH_V0OP_0 ea3b7ededa8ae25082bc8cd3df9056b44fa6e4daP2WPKH_V0OP_0 e8820941ec6e3326e921ff813383ad908d098729P2SHOP_HASH160 875b213dfe9a4122bb4c7a1db54082cb175fdf68 OP_EQUALP2SHOP_HASH160 928563fcaaa58960af0b2d6b3416e5e96c0abc86 OP_EQUALP2WPKH_V0OP_0 e385be4848d43251498e1d43c0b9131d2737aa6cP2WPKH_V0OP_0 e6405485bab09fb37ba208d0a5fd7bf8942d5bd1P2WPKH_V0OP_0 ec5ba665204f9d1a4206af7fe18029a0f6569782P2PKHOP_DUP OP_HASH160 3d2371449b7b6b9c37e097f3d9fa9b9963139fd0 OP_EQUALVERIFY OP_CHECKSIGP2WPKH_V0OP_0 239d923911d6b0aac5fbd794373d9cf804f5cf0aP2WPKH_V0OP_0 fa74559c3ca569bd6671dc6b852ef702ba6a060fP2PKHOP_DUP OP_HASH160 63f5fd79782a47e7b1cf10cbde2b4792bb434b52 OP_EQUALVERIFY OP_CHECKSIGP2PKHOP_DUP OP_HASH160 9d06d045d98edb49a6d1a543270430475d06a7ed OP_EQUALVERIFY OP_CHECKSIGP2WPKH_V0OP_0 6377d2efb8f66d7064bf976fbcc2aec0b6f820acP2WPKH_V0OP_0 b8314e4d857f74f6314fed4fade4888f05c6c00fP2WPKH_V0OP_0 7b6c5d6630b4c1acdfc14871494d2bd7e0de94deP2PKHOP_DUP OP_HASH160 c733fe4a7d3b09623cd6d0ca0c3f05046c3372a8 OP_EQUALVERIFY OP_CHECKSIGP2SHOP_HASH160 ad5f89b568b521a8ab8c9c93e525515b07e459f7 OP_EQUALP2WSH_V0OP_0 52038403faacc9f82a5ffbe7b9fd13f94200f2f3743312ab7aa40fcb62f6c99aP2PKHOP_DUP OP_HASH160 5d535e115b6d28454e00559c2e0dc206a9de476e OP_EQUALVERIFY OP_CHECKSIGP2WPKH_V0OP_0 724edcd75c0d2b0175bb29920f3f8228a6aca775P2WSH_V0OP_0 890b8df5ef200c876a0f14c7b4123dc6fe82eb8b42aa4467cfadb5ec35aa5bcbP2SHOP_HASH160 1eccb089675e4b34f0054d14c952b3cb221c862e OP_EQUALP2SHOP_HASH160 e717d2399a05b65c218c7aa24ff64771b7f4a8ce OP_EQUALP2WPKH_V0OP_0 65c22a786a3a9cf18320e24976bdc2d9333225e2P2WPKH_V0OP_0 d6a1c3b08fca0c2acc40e3ff5a10143ad38def2bP2WPKH_V0OP_0 c3a360469b09ced7460e7f45726e7419e34564d0P2WPKH_V0OP_0 4df58beac021cc5303e7e969c3b393203d107ee9P2PKHOP_DUP OP_HASH160 718c2b383ad6cfb6ac011bcb597e474816b55d72 OP_EQUALVERIFY OP_CHECKSIGP2SHOP_HASH160 182c9ed9f0a779613b7519b7d021683160dd83d9 OP_EQUALP2WPKH_V0OP_0 e02a8af30c5b3b983c0a788f6c546d316146f0c3P2PKHOP_DUP OP_HASH160 fc1e50c689fe356b1266d0d8e1b688ca1a2bbbb5 OP_EQUALVERIFY OP_CHECKSIGP2WPKH_V0OP_0 4688d3b4272bbffe7bae6980c3ccedce7d8916c6P2PKHOP_DUP OP_HASH160 3a787651ab3404ebe5ebe25d674792f3a802f163 OP_EQUALVERIFY OP_CHECKSIGP2PKHOP_DUP OP_HASH160 82fee2f98a3741f39fd463c84afe4e722edce41e OP_EQUALVERIFY OP_CHECKSIGP2WPKH_V0OP_0 ded0a12fcaeb3f8fc12d26ed633cd6fd72597b1fP2PKHOP_DUP OP_HASH160 e484460e7362e2920c8c5bf8e1b9b5d3a7fdfca8 OP_EQUALVERIFY OP_CHECKSIGP2PKHOP_DUP OP_HASH160 c4206999a3350ba5f5a26d31ed38f3334885fd28 OP_EQUALVERIFY OP_CHECKSIGP2SHOP_HASH160 d9d74301e625804c014672c9d864c0dfb15b438f OP_EQUALP2WPKH_V0OP_0 6f651b77fdbcf77bd083357754af6b74e64ec0ecP2WPKH_V0OP_0 7a8f5839198d01a9c8741481fc64497e276490d5P2WPKH_V0OP_0 738c674a6793d70233acf5f5887906fb58383eeaP2PKHOP_DUP OP_HASH160 616043d551dadaae6b7778393ed51462d52a266c OP_EQUALVERIFY OP_CHECKSIGP2WPKH_V0OP_0 12e8804cff88cfb0f45ccc104ed1d699813d8d05P2PKHOP_DUP OP_HASH160 92722e91563ba03ec40e59f05cc3683e8554dc90 OP_EQUALVERIFY OP_CHECKSIGP2WPKH_V0OP_0 babc34f4b72159909cfc2bc92e1ab95630f0b3afP2SHOP_HASH160 fb83fd6a38cbf752a47b435b520bd2a9d81a3c27 OP_EQUALP2SHOP_HASH160 26033c17dae1245c90cb0322129b1ac6d8d4453b OP_EQUALP2WPKH_V0OP_0 febd5d71cf948d059cea7e948e64547837639e8bP2WPKH_V0OP_0 0895c96cc6bc2d961baea16c513c9bbc33d4d3c8P2PKHOP_DUP OP_HASH160 a2fcf32f74d3c0d10b4b86aa88ea0783853f36b2 OP_EQUALVERIFY OP_CHECKSIGP2WPKH_V0OP_0 200c48c19fc80cd059dbf65271581345d5d89400P2SHOP_HASH160 b198f0315bd7c6eb49f14b3d0cead26a52c6e738 OP_EQUALP2PKHOP_DUP OP_HASH160 c69cfa7d56391692ac95e7faa4c307086633ef90 OP_EQUALVERIFY OP_CHECKSIGP2WPKH_V0OP_0 36dbe735838e830846676fb6c2e6ac32a94d2c7cP2PKHOP_DUP OP_HASH160 81447e19371f4d59838c36f10402b2ba82b0d644 OP_EQUALVERIFY OP_CHECKSIGP2PKHOP_DUP OP_HASH160 1e9894c06fb9c19b400bd3e4e5f6877ca1aecd20 OP_EQUALVERIFY OP_CHECKSIGP2WPKH_V0OP_0 c99824bb5cc31e6373c83d2c37a8c4c463c50a3dP2SHOP_HASH160 2f041a256c2c5741183d7787d0748b7270ca7d6b OP_EQUALP2WPKH_V0OP_0 bd3b8f34cdce4a019b269c74b879682ffb490df8P2WPKH_V0OP_0 68444d777919ed34c0c1cb56f68ee652a581be8dP2PKHOP_DUP OP_HASH160 6b74e8e1f4a66246dda2ffe1e507a002d2606d26 OP_EQUALVERIFY OP_CHECKSIGP2SHOP_HASH160 ed0e4b94236ea4f60368528a7a74e136dd3781e0 OP_EQUALP2PKHOP_DUP OP_HASH160 b7cee787417ef9f87671033e3da7d03ad9b5302a OP_EQUALVERIFY OP_CHECKSIGP2PKHOP_DUP OP_HASH160 00ae6c251b7fe2e4ddfee5055d15b5af5d0e5a73 OP_EQUALVERIFY OP_CHECKSIGP2WPKH_V0OP_0 10ae51bbaa672efb83db26646c624467c2e8e5eeP2WPKH_V0OP_0 f2658185cf5694a0ca2cb758a3de73d034613f05P2WPKH_V0OP_0 fcd1254d67451ea537a2636707119179ea2c3d21P2WPKH_V0OP_0 74147a661a0839bbbc8a0878bfe77a5b883c0723P2PKHOP_DUP OP_HASH160 540a063266a26f517cc81b613854bcf2a147019f OP_EQUALVERIFY OP_CHECKSIGP2SHOP_HASH160 02eef50b549bf25584cf532f6745dea1e6254208 OP_EQUALP2WPKH_V0OP_0 a166d63d0f2b78168bd000c03af3fee96cb8f494P2SHOP_HASH160 2aedeba3d72361c60cefda1ec114f82ad653334b OP_EQUALP2WPKH_V0OP_0 97ecf8ea60e7640d2ef2c20921ae4fe4376f6235P2SHOP_HASH160 98bf8fbf33eddfdde1e24daede62fb2395c8ac75 OP_EQUALP2WPKH_V0OP_0 2beb9b6d2ae06855134ff1e13552cc8c28724801P2SHOP_HASH160 55308251d23902cbb577df21952a6697d72b3acb OP_EQUALP2WSH_V0OP_0 c39caa2686116155b05fa3366843ced385caf399613c6fea04ba10a4225aa155P2WPKH_V0OP_0 28aa2d808bd3edb9df09b31017180f03deef0d4aP2WPKH_V0OP_0 b7fe0aacce095d445fccba8a96dd1a1aa645c6c8P2WSH_V0OP_0 be4c42560073100234a3fd712ad85e9b3391cb7366b0b6e0d552e05d9ba5eabcP2WPKH_V0OP_0 a3d2be198f9a33435b56e11c1d4ccf3fab3d452fP2WPKH_V0OP_0 ac5a69096ca37d3d57640e27584dace10c0e7652P2SHOP_HASH160 56162c7897ce94be1154129e25be4a17fa2663f3 OP_EQUALP2SHOP_HASH160 557eef0cdf3b752edc032fff1200408a9149f1dd OP_EQUALP2WPKH_V0OP_0 0b9f27ef3cb3423e07966c236789ac5e058dd370P2WPKH_V0OP_0 96b8f2d0b7653234d49f8d50c2fd9113b7a7b128P2SHOP_HASH160 7aac45e669a0d1ba664562d94825e5be6e34c641 OP_EQUALP2PKHOP_DUP OP_HASH160 bc2e4f1940c8e40780a4a68d7cc36bbcfae6ab07 OP_EQUALVERIFY OP_CHECKSIGP2PKHOP_DUP OP_HASH160 ea8abd70d1f6a7086baf689585389c63a9c39270 OP_EQUALVERIFY OP_CHECKSIGP2SHOP_HASH160 e8a25faabd29c673eb18e69b47f0ed11b43a0cfa OP_EQUALP2WPKH_V0OP_0 014b3275279cb347b028eda9596b47041eea023aP2WPKH_V0OP_0 14fdf4172606d5ec85f5637c1cff2b85ce7ee58aP2PKHOP_DUP OP_HASH160 08abe1c5a0d9e594cb05b64a8d2330667182b9a2 OP_EQUALVERIFY OP_CHECKSIGP2PKHOP_DUP OP_HASH160 0e2858b0b9039caf1878b8ef35b871e9bd2707d9 OP_EQUALVERIFY OP_CHECKSIGP2WPKH_V0OP_0 29183033efb0c89e80f04e5a3cd59818680b9823P2WPKH_V0OP_0 103018287c6fe2f7835de3ea34b5faa355421c9eP2PKHOP_DUP OP_HASH160 a63f413cde478ff8cf69687106e560565c3ff028 OP_EQUALVERIFY OP_CHECKSIGP2PKHOP_DUP OP_HASH160 ff1d41daa2284f07463c8d5260b4151ba22d1aed OP_EQUALVERIFY OP_CHECKSIGP2WPKH_V0OP_0 1f170c0de5d24f53da81d5767c73f8889a3d0be8P2WPKH_V0OP_0 b2643056334b65774c16120c36db7328fd7b69b2P2WPKH_V0OP_0 c4337c5051f0b2b7798ad7e3c45f8216b2c0c896P2PKHOP_DUP OP_HASH160 ede082fe323c0ec8bdeb0b24e43bdb5d2504f4e8 OP_EQUALVERIFY OP_CHECKSIGP2WPKH_V0OP_0 fdac37232a45660c6fc6a4320c6468fe05be8f84P2PKHOP_DUP OP_HASH160 567e9e5c269694389e4f550b4780a12c51f6b366 OP_EQUALVERIFY OP_CHECKSIGP2WPKH_V0OP_0 cfcb87ca426c5b94bcf1dd10df8ae9ab938f2eecP2WPKH_V0OP_0 ead6ce62bb97e9f7136fcbbfbadad342c58c6a1cP2SHOP_HASH160 0bd701e7f56c4fc892a97b8463623dd4c5a6f7b4 OP_EQUALP2WSH_V0OP_0 be972dedf2e1f2fbc4554354614edbe8553b3d688536ed38c0e008f6332a5dd0P2WPKH_V0OP_0 e39586bc038acff44e5e08cce544ba13845f9e86P2PKHOP_DUP OP_HASH160 d2c4e5785ea2be0bad0c3cc9166a6264f3d270f9 OP_EQUALVERIFY OP_CHECKSIGP2PKHOP_DUP OP_HASH160 f68a23664157005013ec88634c98ce0677a7d9d1 OP_EQUALVERIFY OP_CHECKSIGP2SHOP_HASH160 ac8be373ddb8cd30e46f59d975f14f1ae5bd3ab0 OP_EQUALP2PKHOP_DUP OP_HASH160 5dae03e0da4abb725aad3dfa99a19e2afe43f82a OP_EQUALVERIFY OP_CHECKSIGP2WPKH_V0OP_0 3abf58bb43005fa2b69141e81e3ec24f6236b947P2SHOP_HASH160 8c8af01efb44cfb390ca1954617a35b5a8949b49 OP_EQUALP2WPKH_V0OP_0 3039a56195ed388f982e3e5620a3b6d7c090e0e5P2PKHOP_DUP OP_HASH160 a7265efe1ab62a07662e9a2d60b5450ba63d8492 OP_EQUALVERIFY OP_CHECKSIGP2SHOP_HASH160 27aba8a3a8383221d1d7d5e53196735dc3d8d0ae OP_EQUALP2SHOP_HASH160 dbb570691a21648b1c828155c7f04b3a8d31afee OP_EQUALP2SHOP_HASH160 6f9e3a8b573e038e9a772d937029107749bfe140 OP_EQUALP2WPKH_V0OP_0 7ccc6561d493907b5a77d987d31ce0e45ed43c1aP2PKHOP_DUP OP_HASH160 df552143da131eb3be1190fafff34baabebfefa4 OP_EQUALVERIFY OP_CHECKSIGP2WPKH_V0OP_0 c394ce2f4a2564154e2dee85d9272a73894ec6d9P2PKHOP_DUP OP_HASH160 a843653e1ee9521dbc1ed9d71ae99b485b800345 OP_EQUALVERIFY OP_CHECKSIGP2WPKH_V0OP_0 a4ca20a6341cab99f9f7f513414518722588df77P2WPKH_V0OP_0 69bf064af7baf822221bc93ea15a0144239329c3P2WPKH_V0OP_0 c018d2e1591b6c864995ec6aa59e760e2ab48527P2PKHOP_DUP OP_HASH160 d614dad5e5cb59fad55f51766bbf7bba6fe35eb0 OP_EQUALVERIFY OP_CHECKSIGP2WPKH_V0OP_0 90cc89ea9d40f6fbb3d80d9c5bb9ca5128d595d7P2WPKH_V0OP_0 69157d853d063a6f2395af0962d2a06cabcc50f4P2WPKH_V0OP_0 ce48ba3558f9b2c6b2231f523c23c7f679477cccP2SHOP_HASH160 5258760b6d433104bd067a88304b0553a3fa26a9 OP_EQUALP2WPKH_V0OP_0 aa1e81d3a47ad13241f0885bcc0a2acad255e758P2PKHOP_DUP OP_HASH160 0bac16842676c6328c16b40756eb0daf4ab1ae7c OP_EQUALVERIFY OP_CHECKSIGP2WPKH_V0OP_0 c5a8f1e57419da6d8cb86772754463d1973d64fdP2WPKH_V0OP_0 7476c123b053223cdb89304abb5967f3056d244cP2WPKH_V0OP_0 3f052f6f466f51865f936c43227d349b7d0e0ac1P2PKHOP_DUP OP_HASH160 ae98823b7fca5d570f66347149cb37c710b42baf OP_EQUALVERIFY OP_CHECKSIGP2WPKH_V0OP_0 f9b09c44ead503c15a59b2c09d0f99bfbe85be96P2PKHOP_DUP OP_HASH160 95a42bc30f10b8efe4c662625a4f2ef8fd24270d OP_EQUALVERIFY OP_CHECKSIGP2WPKH_V0OP_0 125d92a79039d0527bf0bc321b90adc1bd1459e4P2PKHOP_DUP OP_HASH160 b5d06490f5b81940ec48594a9ced33d1d394fc9e OP_EQUALVERIFY OP_CHECKSIGP2WPKH_V0OP_0 725401a9278af8ad420fe7af82afaf477f2d4412P2SHOP_HASH160 c7873e6fdd68314b2506b6de5eace90d3d88f932 OP_EQUALP2PKHOP_DUP OP_HASH160 dcfd0639b0b0331e8b1f0ae036bd25bb73948f94 OP_EQUALVERIFY OP_CHECKSIGP2WPKH_V0OP_0 15ee954b29dca14672d165087b800e5819953bd0P2SHOP_HASH160 7bc1b957523336cea1da60461f2fa4f672f7c39a OP_EQUALP2WPKH_V0OP_0 6501c3d964070b7f967b66df0eb111ad36e4c122P2WPKH_V0OP_0 1d6b958c01e0756963d66b4327bbfabd51490c87P2WPKH_V0OP_0 e0d05f7780c3f699e49d97c709c1ced13e8c17e1P2PKHOP_DUP OP_HASH160 e8b043807fb4d8f0c450bedd99351a4ce7455106 OP_EQUALVERIFY OP_CHECKSIGP2WPKH_V0OP_0 4208dfb017b16071336db0c42199d22062ce2a95P2PKHOP_DUP OP_HASH160 4103f320cda3fbc0cd13f899cd36e55a252a608d OP_EQUALVERIFY OP_CHECKSIGP2WPKH_V0OP_0 0e8ac244c1a39c22b485d455fb1534eb379c31b0P2PKHOP_DUP OP_HASH160 f5aa3b01f0b0f5bb14285b6ab93efeaf99bea798 OP_EQUALVERIFY OP_CHECKSIGP2WPKH_V0OP_0 10a5e17093804323c2c396ad6c34fc4857fbf99eP2SHOP_HASH160 db56ee4e7053409f2b0c04b8137582e56f131aaa OP_EQUALP2WPKH_V0OP_0 1c043cedaf6a8baf381b36928602843e2f299189P2WPKH_V0OP_0 42cbed50e7529a0f20c67bda998391a782c93982P2WPKH_V0OP_0 5cb3ab823497fecfc52b177ee346991d3e428bdbP2WPKH_V0OP_0 339acbaf410111f5c3f4fa2f1ad7af4937a9eaf7P2WPKH_V0OP_0 5c95f5b0841b4f116a31b07ee36a72d259298c3aP2WPKH_V0OP_0 254f6bf3499b4e0aa780401e71592b4f55976030P2WPKH_V0OP_0 222883c5ea8a32275cbef5bcadfd1b9c33dc26b6P2WPKH_V0OP_0 64530454e15cd4ff07facc644c07ec4ee860509aP2SHOP_HASH160 5915b55f49d58e10c221fb1d5cd40987fa13f8f1 OP_EQUALP2SHOP_HASH160 f4a936e930202a2a46c830f32f87b9dd9f62328d OP_EQUALP2SHOP_HASH160 67e841d1f4606eb0716e76da27d3847e22f15e51 OP_EQUALP2SHOP_HASH160 04869089ff593b665539aff2d31ca8e8a4c92f6c OP_EQUALP2WPKH_V0OP_0 93f014af81d4da40e2c3044d0d8bb0241b698f15P2PKHOP_DUP OP_HASH160 bea93729992ec6d9ecd3affe075ec7b8f7b5d1a7 OP_EQUALVERIFY OP_CHECKSIGP2SHOP_HASH160 4df3f7dc3cae1677d2004e518273520f9e9ce5c6 OP_EQUALP2PKHOP_DUP OP_HASH160 bd7756b078e4943759c2a679047d43025940cea2 OP_EQUALVERIFY OP_CHECKSIGP2WPKH_V0OP_0 9b45d4185f0ee05132a75a1dec57af2a22ec0e33P2WPKH_V0OP_0 fed3bd2769e554efdb0863cf4bdcdb708e733c15P2SHOP_HASH160 1cf7114eaddd4d331e720f2b8c54517b7bc36cf6 OP_EQUALP2PKHOP_DUP OP_HASH160 97697fbf215fd64d748027cd8a5c7725454741ff OP_EQUALVERIFY OP_CHECKSIGP2WPKH_V0OP_0 32b57b9bd587d9a21471d81a9d4bd723a772cf2a