Testnet3Testnet

Configured chains

Test coinsWARNING: This is Bitcoin Cash Testnet3. Coins on this network have no value. Select Bitcoin Cash Mainnet above for the real Bitcoin Cash network.

Blocks

Blocks 1,280,300 to 1,280,399

Bitcoin Cash Testnet3 · test coins

Archive window01-16 14:10 to 01-17 04:14 UTCTip 1,734,856 · 454,457 blocks newer

LatestCurrent window1,734,800–1,734,899This window1,280,300–1,280,399Older1,280,200–1,280,299
Blocks in window100Rows returned for this window
Time span14 hFrom timestamps in this window
Median gap7 minMedian of 99 gaps

Block timeline

This window · 100 blocks. Bar height is transaction count, colour is miner; gaps use header times.
Timeline of the last 100 Testnet3 blocksBlocks 1,280,300 to 1,280,399 placed in height order by header timestamp, with backward times sharing their predecessor's position, on an axis ending at the latest timestamp in this window 04:14 UTC. Bar height is the transaction count; colour is the miner.Block 1,280,300, 72 tx, Nodestratum, 2019-01-16 14:10:46 UTCBlock 1,280,301, 184 tx, Nodestratum, 2019-01-16 14:11:48 UTCBlock 1,280,302, 88 tx, Nodestratum, 2019-01-16 14:22:51 UTCBlock 1,280,303, 87 tx, Nodestratum, 2019-01-16 14:23:06 UTCBlock 1,280,304, 82 tx, Nodestratum, 2019-01-16 14:28:53 UTCBlock 1,280,305, 70 tx, Nodestratum, 2019-01-16 14:29:25 UTCBlock 1,280,306, 86 tx, Nodestratum, 2019-01-16 14:38:32 UTCBlock 1,280,307, 74 tx, Nodestratum, 2019-01-16 14:52:13 UTCBlock 1,280,308, 83 tx, Nodestratum, 2019-01-16 15:06:39 UTCBlock 1,280,309, 86 tx, Nodestratum, 2019-01-16 15:15:42 UTCBlock 1,280,310, 86 tx, Nodestratum, 2019-01-16 15:22:53 UTCBlock 1,280,311, 86 tx, Nodestratum, 2019-01-16 15:24:45 UTCBlock 1,280,312, 88 tx, Nodestratum, 2019-01-16 15:31:56 UTCBlock 1,280,313, 89 tx, Nodestratum, 2019-01-16 15:34:03 UTCBlock 1,280,314, 70 tx, Nodestratum, 2019-01-16 15:45:29 UTCBlock 1,280,315, 37 tx, Nodestratum, 2019-01-16 16:05:48 UTCBlock 1,280,316, 89 tx, Nodestratum, 2019-01-16 16:15:13 UTCBlock 1,280,317, 86 tx, Nodestratum, 2019-01-16 16:20:38 UTCBlock 1,280,318, 202 tx, Nodestratum, 2019-01-16 16:24:10 UTCBlock 1,280,319, 88 tx, Nodestratum, 2019-01-16 16:26:08 UTCBlock 1,280,320, 87 tx, Nodestratum, 2019-01-16 16:31:28 UTCBlock 1,280,321, 80 tx, Nodestratum, 2019-01-16 16:42:16 UTCBlock 1,280,322, 65 tx, Nodestratum, 2019-01-16 16:53:48 UTCBlock 1,280,323, 80 tx, Nodestratum, 2019-01-16 17:14:04 UTCBlock 1,280,324, 88 tx, Nodestratum, 2019-01-16 17:30:42 UTCBlock 1,280,325, 78 tx, Nodestratum, 2019-01-16 17:32:09 UTCBlock 1,280,326, 75 tx, Nodestratum, 2019-01-16 17:50:12 UTCBlock 1,280,327, 89 tx, Nodestratum, 2019-01-16 17:51:18 UTCBlock 1,280,328, 87 tx, Nodestratum, 2019-01-16 17:52:39 UTCBlock 1,280,329, 81 tx, Nodestratum, 2019-01-16 18:13:08 UTCBlock 1,280,330, 87 tx, Nodestratum, 2019-01-16 18:18:35 UTCBlock 1,280,331, 86 tx, Nodestratum, 2019-01-16 18:24:59 UTCBlock 1,280,332, 79 tx, Nodestratum, 2019-01-16 18:45:08 UTCBlock 1,280,333, 80 tx, Nodestratum, 2019-01-16 18:49:29 UTCBlock 1,280,334, 79 tx, Nodestratum, 2019-01-16 18:59:17 UTCBlock 1,280,335, 84 tx, Nodestratum, 2019-01-16 19:16:39 UTCBlock 1,280,336, 70 tx, Nodestratum, 2019-01-16 19:24:27 UTCBlock 1,280,337, 78 tx, Nodestratum, 2019-01-16 19:33:37 UTCBlock 1,280,338, 74 tx, Nodestratum, 2019-01-16 19:46:06 UTCBlock 1,280,339, 79 tx, Nodestratum, 2019-01-16 20:02:04 UTCBlock 1,280,340, 75 tx, Nodestratum, 2019-01-16 20:18:06 UTCBlock 1,280,341, 81 tx, Nodestratum, 2019-01-16 20:18:34 UTCBlock 1,280,342, 85 tx, Nodestratum, 2019-01-16 20:18:44 UTCBlock 1,280,343, 67 tx, Nodestratum, 2019-01-16 20:19:43 UTCBlock 1,280,344, 77 tx, Nodestratum, 2019-01-16 20:27:53 UTCBlock 1,280,345, 89 tx, Nodestratum, 2019-01-16 20:29:46 UTCBlock 1,280,346, 67 tx, Nodestratum, 2019-01-16 20:49:16 UTCBlock 1,280,347, 73 tx, Nodestratum, 2019-01-16 20:50:38 UTCBlock 1,280,348, 68 tx, Nodestratum, 2019-01-16 20:52:16 UTCBlock 1,280,349, 87 tx, Nodestratum, 2019-01-16 20:53:33 UTCBlock 1,280,350, 1,059 tx, Nodestratum, 2019-01-16 20:57:38 UTCBlock 1,280,351, 78 tx, Nodestratum, 2019-01-16 21:18:07 UTCBlock 1,280,352, 89 tx, Nodestratum, 2019-01-16 21:26:21 UTCBlock 1,280,353, 72 tx, Nodestratum, 2019-01-16 21:28:26 UTCBlock 1,280,354, 78 tx, Nodestratum, 2019-01-16 21:45:59 UTCBlock 1,280,355, 72 tx, Nodestratum, 2019-01-16 21:47:57 UTCBlock 1,280,356, 84 tx, Nodestratum, 2019-01-16 22:03:10 UTCBlock 1,280,357, 87 tx, Nodestratum, 2019-01-16 22:05:16 UTCBlock 1,280,358, 85 tx, Nodestratum, 2019-01-16 22:21:04 UTCBlock 1,280,359, 87 tx, Nodestratum, 2019-01-16 22:30:20 UTCBlock 1,280,360, 4,714 tx, Nodestratum, 2019-01-16 22:41:13 UTCBlock 1,280,361, 86 tx, Nodestratum, 2019-01-16 22:51:23 UTCBlock 1,280,362, 89 tx, Nodestratum, 2019-01-16 23:02:14 UTCBlock 1,280,363, 78 tx, Nodestratum, 2019-01-16 23:06:03 UTCBlock 1,280,364, 89 tx, Nodestratum, 2019-01-16 23:19:37 UTCBlock 1,280,365, 89 tx, Nodestratum, 2019-01-16 23:20:52 UTCBlock 1,280,366, 84 tx, Nodestratum, 2019-01-16 23:25:58 UTCBlock 1,280,367, 82 tx, Nodestratum, 2019-01-16 23:46:53 UTCBlock 1,280,368, 76 tx, Nodestratum, 2019-01-16 23:48:32 UTCBlock 1,280,369, 84 tx, Nodestratum, 2019-01-16 23:55:04 UTCBlock 1,280,370, 86 tx, Nodestratum, 2019-01-17 00:09:02 UTCBlock 1,280,371, 79 tx, Nodestratum, 2019-01-17 00:25:25 UTCBlock 1,280,372, 76 tx, Nodestratum, 2019-01-17 00:26:55 UTCBlock 1,280,373, 83 tx, Nodestratum, 2019-01-17 00:37:04 UTCBlock 1,280,374, 71 tx, Nodestratum, 2019-01-17 00:53:02 UTCBlock 1,280,375, 87 tx, Nodestratum, 2019-01-17 01:03:57 UTCBlock 1,280,376, 68 tx, Nodestratum, 2019-01-17 01:21:37 UTCBlock 1,280,377, 84 tx, Nodestratum, 2019-01-17 01:42:30 UTCBlock 1,280,378, 89 tx, Nodestratum, 2019-01-17 01:52:08 UTCBlock 1,280,379, 83 tx, Nodestratum, 2019-01-17 02:12:55 UTCBlock 1,280,380, 70 tx, Nodestratum, 2019-01-17 02:27:20 UTCBlock 1,280,381, 77 tx, Nodestratum, 2019-01-17 02:29:36 UTCBlock 1,280,382, 49 tx, Nodestratum, 2019-01-17 02:40:40 UTCBlock 1,280,383, 79 tx, Nodestratum, 2019-01-17 03:01:30 UTCBlock 1,280,384, 79 tx, Nodestratum, 2019-01-17 03:12:03 UTCBlock 1,280,385, 77 tx, Nodestratum, 2019-01-17 03:13:30 UTCBlock 1,280,386, 2,209 tx, Nodestratum, 2019-01-17 03:15:06 UTCBlock 1,280,387, 68 tx, Nodestratum, 2019-01-17 03:35:49 UTCBlock 1,280,388, 77 tx, Nodestratum, 2019-01-17 03:37:16 UTCBlock 1,280,389, 86 tx, Nodestratum, 2019-01-17 03:41:21 UTCBlock 1,280,390, 88 tx, Nodestratum, 2019-01-17 03:44:11 UTCBlock 1,280,391, 86 tx, Nodestratum, 2019-01-17 03:49:37 UTCBlock 1,280,392, 68 tx, Nodestratum, 2019-01-17 03:54:15 UTCBlock 1,280,393, 271 tx, Nodestratum, 2019-01-17 04:01:29 UTCBlock 1,280,394, 6 tx, Nodestratum, 2019-01-17 04:05:59 UTCBlock 1,280,395, 87 tx, Nodestratum, 2019-01-17 04:08:48 UTCBlock 1,280,396, 170 tx, Nodestratum, 2019-01-17 04:11:52 UTCBlock 1,280,397, 89 tx, Nodestratum, 2019-01-17 04:13:51 UTCBlock 1,280,398, 165 tx, Nodestratum, 2019-01-17 04:14:23 UTCBlock 1,280,399, 2 tx, Nodestratum, 2019-01-17 04:14:27 UTC72827483867037868080887581797984787975671,059787884854,714867889828679716884837049792,2096886621,280,3991,280,3981,280,3861,280,3851,280,3791,280,3781,280,3761,280,3741,280,3721,280,3691,280,3661,280,3621,280,3591,280,3571,280,3531,280,3501,280,3451,280,3391,280,3371,280,3341,280,3311,280,3281,280,3251,280,3221,280,3211,280,3141,280,3131,280,3071,280,306-16 h-12 h-8 h-4 hwindow end 04:14 UTCTimeline of the last 100 Testnet3 blocksBlocks 1,280,300 to 1,280,399 placed in height order by header timestamp, with backward times sharing their predecessor's position, on an axis ending at the latest timestamp in this window 04:14 UTC. Bar height is the transaction count; colour is the miner.Block 1,280,300, 72 tx, Nodestratum, 2019-01-16 14:10:46 UTCBlock 1,280,301, 184 tx, Nodestratum, 2019-01-16 14:11:48 UTCBlock 1,280,302, 88 tx, Nodestratum, 2019-01-16 14:22:51 UTCBlock 1,280,303, 87 tx, Nodestratum, 2019-01-16 14:23:06 UTCBlock 1,280,304, 82 tx, Nodestratum, 2019-01-16 14:28:53 UTCBlock 1,280,305, 70 tx, Nodestratum, 2019-01-16 14:29:25 UTCBlock 1,280,306, 86 tx, Nodestratum, 2019-01-16 14:38:32 UTCBlock 1,280,307, 74 tx, Nodestratum, 2019-01-16 14:52:13 UTCBlock 1,280,308, 83 tx, Nodestratum, 2019-01-16 15:06:39 UTCBlock 1,280,309, 86 tx, Nodestratum, 2019-01-16 15:15:42 UTCBlock 1,280,310, 86 tx, Nodestratum, 2019-01-16 15:22:53 UTCBlock 1,280,311, 86 tx, Nodestratum, 2019-01-16 15:24:45 UTCBlock 1,280,312, 88 tx, Nodestratum, 2019-01-16 15:31:56 UTCBlock 1,280,313, 89 tx, Nodestratum, 2019-01-16 15:34:03 UTCBlock 1,280,314, 70 tx, Nodestratum, 2019-01-16 15:45:29 UTCBlock 1,280,315, 37 tx, Nodestratum, 2019-01-16 16:05:48 UTCBlock 1,280,316, 89 tx, Nodestratum, 2019-01-16 16:15:13 UTCBlock 1,280,317, 86 tx, Nodestratum, 2019-01-16 16:20:38 UTCBlock 1,280,318, 202 tx, Nodestratum, 2019-01-16 16:24:10 UTCBlock 1,280,319, 88 tx, Nodestratum, 2019-01-16 16:26:08 UTCBlock 1,280,320, 87 tx, Nodestratum, 2019-01-16 16:31:28 UTCBlock 1,280,321, 80 tx, Nodestratum, 2019-01-16 16:42:16 UTCBlock 1,280,322, 65 tx, Nodestratum, 2019-01-16 16:53:48 UTCBlock 1,280,323, 80 tx, Nodestratum, 2019-01-16 17:14:04 UTCBlock 1,280,324, 88 tx, Nodestratum, 2019-01-16 17:30:42 UTCBlock 1,280,325, 78 tx, Nodestratum, 2019-01-16 17:32:09 UTCBlock 1,280,326, 75 tx, Nodestratum, 2019-01-16 17:50:12 UTCBlock 1,280,327, 89 tx, Nodestratum, 2019-01-16 17:51:18 UTCBlock 1,280,328, 87 tx, Nodestratum, 2019-01-16 17:52:39 UTCBlock 1,280,329, 81 tx, Nodestratum, 2019-01-16 18:13:08 UTCBlock 1,280,330, 87 tx, Nodestratum, 2019-01-16 18:18:35 UTCBlock 1,280,331, 86 tx, Nodestratum, 2019-01-16 18:24:59 UTCBlock 1,280,332, 79 tx, Nodestratum, 2019-01-16 18:45:08 UTCBlock 1,280,333, 80 tx, Nodestratum, 2019-01-16 18:49:29 UTCBlock 1,280,334, 79 tx, Nodestratum, 2019-01-16 18:59:17 UTCBlock 1,280,335, 84 tx, Nodestratum, 2019-01-16 19:16:39 UTCBlock 1,280,336, 70 tx, Nodestratum, 2019-01-16 19:24:27 UTCBlock 1,280,337, 78 tx, Nodestratum, 2019-01-16 19:33:37 UTCBlock 1,280,338, 74 tx, Nodestratum, 2019-01-16 19:46:06 UTCBlock 1,280,339, 79 tx, Nodestratum, 2019-01-16 20:02:04 UTCBlock 1,280,340, 75 tx, Nodestratum, 2019-01-16 20:18:06 UTCBlock 1,280,341, 81 tx, Nodestratum, 2019-01-16 20:18:34 UTCBlock 1,280,342, 85 tx, Nodestratum, 2019-01-16 20:18:44 UTCBlock 1,280,343, 67 tx, Nodestratum, 2019-01-16 20:19:43 UTCBlock 1,280,344, 77 tx, Nodestratum, 2019-01-16 20:27:53 UTCBlock 1,280,345, 89 tx, Nodestratum, 2019-01-16 20:29:46 UTCBlock 1,280,346, 67 tx, Nodestratum, 2019-01-16 20:49:16 UTCBlock 1,280,347, 73 tx, Nodestratum, 2019-01-16 20:50:38 UTCBlock 1,280,348, 68 tx, Nodestratum, 2019-01-16 20:52:16 UTCBlock 1,280,349, 87 tx, Nodestratum, 2019-01-16 20:53:33 UTCBlock 1,280,350, 1,059 tx, Nodestratum, 2019-01-16 20:57:38 UTCBlock 1,280,351, 78 tx, Nodestratum, 2019-01-16 21:18:07 UTCBlock 1,280,352, 89 tx, Nodestratum, 2019-01-16 21:26:21 UTCBlock 1,280,353, 72 tx, Nodestratum, 2019-01-16 21:28:26 UTCBlock 1,280,354, 78 tx, Nodestratum, 2019-01-16 21:45:59 UTCBlock 1,280,355, 72 tx, Nodestratum, 2019-01-16 21:47:57 UTCBlock 1,280,356, 84 tx, Nodestratum, 2019-01-16 22:03:10 UTCBlock 1,280,357, 87 tx, Nodestratum, 2019-01-16 22:05:16 UTCBlock 1,280,358, 85 tx, Nodestratum, 2019-01-16 22:21:04 UTCBlock 1,280,359, 87 tx, Nodestratum, 2019-01-16 22:30:20 UTCBlock 1,280,360, 4,714 tx, Nodestratum, 2019-01-16 22:41:13 UTCBlock 1,280,361, 86 tx, Nodestratum, 2019-01-16 22:51:23 UTCBlock 1,280,362, 89 tx, Nodestratum, 2019-01-16 23:02:14 UTCBlock 1,280,363, 78 tx, Nodestratum, 2019-01-16 23:06:03 UTCBlock 1,280,364, 89 tx, Nodestratum, 2019-01-16 23:19:37 UTCBlock 1,280,365, 89 tx, Nodestratum, 2019-01-16 23:20:52 UTCBlock 1,280,366, 84 tx, Nodestratum, 2019-01-16 23:25:58 UTCBlock 1,280,367, 82 tx, Nodestratum, 2019-01-16 23:46:53 UTCBlock 1,280,368, 76 tx, Nodestratum, 2019-01-16 23:48:32 UTCBlock 1,280,369, 84 tx, Nodestratum, 2019-01-16 23:55:04 UTCBlock 1,280,370, 86 tx, Nodestratum, 2019-01-17 00:09:02 UTCBlock 1,280,371, 79 tx, Nodestratum, 2019-01-17 00:25:25 UTCBlock 1,280,372, 76 tx, Nodestratum, 2019-01-17 00:26:55 UTCBlock 1,280,373, 83 tx, Nodestratum, 2019-01-17 00:37:04 UTCBlock 1,280,374, 71 tx, Nodestratum, 2019-01-17 00:53:02 UTCBlock 1,280,375, 87 tx, Nodestratum, 2019-01-17 01:03:57 UTCBlock 1,280,376, 68 tx, Nodestratum, 2019-01-17 01:21:37 UTCBlock 1,280,377, 84 tx, Nodestratum, 2019-01-17 01:42:30 UTCBlock 1,280,378, 89 tx, Nodestratum, 2019-01-17 01:52:08 UTCBlock 1,280,379, 83 tx, Nodestratum, 2019-01-17 02:12:55 UTCBlock 1,280,380, 70 tx, Nodestratum, 2019-01-17 02:27:20 UTCBlock 1,280,381, 77 tx, Nodestratum, 2019-01-17 02:29:36 UTCBlock 1,280,382, 49 tx, Nodestratum, 2019-01-17 02:40:40 UTCBlock 1,280,383, 79 tx, Nodestratum, 2019-01-17 03:01:30 UTCBlock 1,280,384, 79 tx, Nodestratum, 2019-01-17 03:12:03 UTCBlock 1,280,385, 77 tx, Nodestratum, 2019-01-17 03:13:30 UTCBlock 1,280,386, 2,209 tx, Nodestratum, 2019-01-17 03:15:06 UTCBlock 1,280,387, 68 tx, Nodestratum, 2019-01-17 03:35:49 UTCBlock 1,280,388, 77 tx, Nodestratum, 2019-01-17 03:37:16 UTCBlock 1,280,389, 86 tx, Nodestratum, 2019-01-17 03:41:21 UTCBlock 1,280,390, 88 tx, Nodestratum, 2019-01-17 03:44:11 UTCBlock 1,280,391, 86 tx, Nodestratum, 2019-01-17 03:49:37 UTCBlock 1,280,392, 68 tx, Nodestratum, 2019-01-17 03:54:15 UTCBlock 1,280,393, 271 tx, Nodestratum, 2019-01-17 04:01:29 UTCBlock 1,280,394, 6 tx, Nodestratum, 2019-01-17 04:05:59 UTCBlock 1,280,395, 87 tx, Nodestratum, 2019-01-17 04:08:48 UTCBlock 1,280,396, 170 tx, Nodestratum, 2019-01-17 04:11:52 UTCBlock 1,280,397, 89 tx, Nodestratum, 2019-01-17 04:13:51 UTCBlock 1,280,398, 165 tx, Nodestratum, 2019-01-17 04:14:23 UTCBlock 1,280,399, 2 tx, Nodestratum, 2019-01-17 04:14:27 UTC21,280,399-24 hwindow end 04:14 UTC
  • Nodestratum

The plot uses timestamps and transaction counts returned with the blocks. Unknown miner tags use the neutral mark.

Miner mix for this window

  • Nodestratum100 blocks · 100%
  • Nodestratum100 blocks · 100%

Blocks in this window

Latest blocksBlock archive
Block statistics are not available for this window. Size, fees and total out are omitted rather than inferred from other returned block fields.Retry
HeightMinedMinerTx
1,280,399Nodestratum2
1,280,398Nodestratum165
1,280,397Nodestratum89
1,280,396Nodestratum170
1,280,395Nodestratum87
1,280,394Nodestratum6
1,280,393Nodestratum271
1,280,392Nodestratum68
1,280,391Nodestratum86
1,280,390Nodestratum88
1,280,389Nodestratum86
1,280,388Nodestratum77
1,280,387Nodestratum68
1,280,386Nodestratum2,209
1,280,385Nodestratum77
1,280,384Nodestratum79
1,280,383Nodestratum79
1,280,382Nodestratum49
1,280,381Nodestratum77
1,280,380Nodestratum70
1,280,379Nodestratum83
1,280,378Nodestratum89
1,280,377Nodestratum84
1,280,376Nodestratum68
1,280,375Nodestratum87
1,280,374Nodestratum71
1,280,373Nodestratum83
1,280,372Nodestratum76
1,280,371Nodestratum79
1,280,370Nodestratum86
1,280,369Nodestratum84
1,280,368Nodestratum76
1,280,367Nodestratum82
1,280,366Nodestratum84
1,280,365Nodestratum89
1,280,364Nodestratum89
1,280,363Nodestratum78
1,280,362Nodestratum89
1,280,361Nodestratum86
1,280,360Nodestratum4,714
1,280,359Nodestratum87
1,280,358Nodestratum85
1,280,357Nodestratum87
1,280,356Nodestratum84
1,280,355Nodestratum72
1,280,354Nodestratum78
1,280,353Nodestratum72
1,280,352Nodestratum89
1,280,351Nodestratum78
1,280,350Nodestratum1,059
1,280,349Nodestratum87
1,280,348Nodestratum68
1,280,347Nodestratum73
1,280,346Nodestratum67
1,280,345Nodestratum89
1,280,344Nodestratum77
1,280,343Nodestratum67
1,280,342Nodestratum85
1,280,341Nodestratum81
1,280,340Nodestratum75
1,280,339Nodestratum79
1,280,338Nodestratum74
1,280,337Nodestratum78
1,280,336Nodestratum70
1,280,335Nodestratum84
1,280,334Nodestratum79
1,280,333Nodestratum80
1,280,332Nodestratum79
1,280,331Nodestratum86
1,280,330Nodestratum87
1,280,329Nodestratum81
1,280,328Nodestratum87
1,280,327Nodestratum89
1,280,326Nodestratum75
1,280,325Nodestratum78
1,280,324Nodestratum88
1,280,323Nodestratum80
1,280,322Nodestratum65
1,280,321Nodestratum80
1,280,320Nodestratum87
1,280,319Nodestratum88
1,280,318Nodestratum202
1,280,317Nodestratum86
1,280,316Nodestratum89
1,280,315Nodestratum37
1,280,314Nodestratum70
1,280,313Nodestratum89
1,280,312Nodestratum88
1,280,311Nodestratum86
1,280,310Nodestratum86
1,280,309Nodestratum86
1,280,308Nodestratum83
1,280,307Nodestratum74
1,280,306Nodestratum86
1,280,305Nodestratum70
1,280,304Nodestratum82
1,280,303Nodestratum87
1,280,302Nodestratum88
1,280,301Nodestratum184
1,280,300Nodestratum72