1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x019343a0d936541233964c035dbece24da8903d8fa8d75bc5e3519de74e85322. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/2201ded5-3aef-4fe4-b8de-b3206f1c6796.json and https://artists.proofprofile.net/proofs/artist/2201ded5-3aef-4fe4-b8de-b3206f1c6796.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Культурные сессии (Live для Радио Культура)
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24dee2a97d62d5b876c79f5d6505df2f2e62bf47572f98a7da40cdc4f2c96caa. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR59R2111192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4028de0e65b89bcfa7db1493125536e080d87264a3d551d5d44e2ad70d6305b2. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:04:30Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX762118148.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81a5d7ababd94112fddeb918eb61471987790923410328211ad4ccba2079c459. Chain 2 (Bitcoin): anchored in block 958496 (2026-07-18T04:43:53Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX452145834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f00b314020f73c97de7ae57bcf55313b9ac9c1d9eb722463e88e59739cb1276. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T19:56:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX762118150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3082e212a04a4cb859ff0d7495af06683355be1443ca2afff8acbf82ccd3ba1e. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG2240030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6261b152f8824bd635faa02d7e92530e95fc599a6e3c5bdab16382590122ccb1. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T05:03:03Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG2240032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6261b152f8824bd635faa02d7e92530e95fc599a6e3c5bdab16382590122ccb1. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:25:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US7VG2240032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x684773f23ef19dc5aa7b37dfb5bf0f5d36df8d09298de82338d6d3b3ecd86088. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX282276312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd50953a60870f5baf6db690bc5833ab3e773e312600c05cf941a2e32cfb3a3a0. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX452244937.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x684773f23ef19dc5aa7b37dfb5bf0f5d36df8d09298de82338d6d3b3ecd86088. Chain 2 (Bitcoin): anchored in block 956578 (2026-07-04T02:23:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX282276312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb35699efbc407bcd7e816ed3e2be3afc3faa16a20c792e7dcb7cd2da89fde2d. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX452277747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb1d31728984324273474d0d7b13bb115450fc0517bf8c889b05ffbded356027. Chain 2 (Bitcoin): anchored in block 958110 (2026-07-15T06:57:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR59R2359429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7549f77227b27d5ad309f12e8ea196a71fe8c0425b15daafd13a3721ce8569af. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR59R2359430.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x773dd2f69a4ccd410e1eb98ed27b8bc6ac37ac5f7034842d8ede6ebbb207d002. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR59R2359431.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1712981c54362ac906b4a7eca3a7b09f1745677de418c3437a72991c8cd4cb8. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX872363393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb391c8f139056bfe99fbdc189b50396c50617eb99c684f5b5516517fb433001f. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA082315754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0287e9e2744fbeb52a13af0a32cca069c5639ee25ad0e97adab3a6f65a6316ae. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/DGA082315756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6050d24e7c4cf774f48b68edd166e8e7e791734765acde0c98c8a79717fecd7a. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T09:01:24Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FR96X2438517.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a4ace53e0f5588ca893fd7a5a43bff24dc74b536eb97ef4655600e224e4d9ab. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX762433223.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ad22c8cfd5e51262d692d2db9e3356fb193587549e209128d055199ef791093. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T20:44:14Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX762433224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d243de8eae2751a1d12f8aaf0e7f6265e9fd9b2103ab22a5d30cd0268ced801. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/FRX762433227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d6e0cbaee491bce8366540fc04ba44f93fe7be36652f89e0e61774490b3e3cc. Chain 2 (Bitcoin): anchored in block 957770 (2026-07-12T23:17:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/RUAGV2502371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc79f6296bb095b9b38bb71bf8d125f9972bf504e5526b27205baba740d15cb74. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/RUAGV2502373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5913cecaeb9f8493ffffd35df27aa1a70e13bdc175b9e721e36da6db2be0de8. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:48:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/RUAGV2502374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25cf28331d179b8ec4f189be64512ee7939394152b80fec8600aa416ce6ed8f8. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/RUAGV2502375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5b2bafa7b9d5849338daeada961a88b1cf2e12134b92345b070e3362dccaef1. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/RUAGV2502376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x790098c1f227942695f0505a15ceeeea294c8014dade11c74e4009ac91e514e9. Chain 2 (Bitcoin): anchored in block 958095 (2026-07-15T04:30:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/RUAGV2502377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6781c08b282c17ea8613c87c54bcee574e9bd30de715d26e874e766ec5e2e9ab. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/RUAGV2502378.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5eec62002f716926ec733fc6eb3a64926b6bdf0b0a509fb2c6f1d96db1a41192. Chain 2 (Bitcoin): anchored in block 958371 (2026-07-17T05:45:43Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/RUAGV2502379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a3c1cb76abe4ee6000f51dc05fdf431ddf71961b7d30faeafb4424d010d9fe0. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/RUAGV2502380.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa56dadad443e084a6e451261ce5859b344b01fa019c11ac70b733b9fc1bc25f0. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/RUAGV2502381.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x591db66d97cba11d6bb9958c569035194f1ba70c45e552904d327f43751172e0. Chain 2 (Bitcoin): anchored in block 958376 (2026-07-17T06:41:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/RUAGV2502382.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99e26bffbf5c8d1faecd0457f68095cd9355778aa06c1c71e5ecaba6585551c6. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/RUAGV2502383.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1dc861084c7818f7669c4d58648b1ce94c5f4ada06a24367e68d4ce6041631f7. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/RUAGV2502369.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d81afa92a41016eed0897b0a461adc1ca1cf12f13cf4552b037b51427897fa7. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/RUAGV2502385.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ddac76b88193a6c70eb9477df71c73c6cafd91b9b23c742e42df47a6740bdb6. Chain 2 (Bitcoin): anchored in block 956745 (2026-07-05T05:33:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/RUAGV2502386.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f5087cd19e065eec0b2f081b5c0f468b9b81ddce8a2531e8c45d0e620a3134d. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/RUAGV2501051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe42ecf9f0320d3f7cf5231fffbf81e0980654e1767eb09919ecc47c9adb8ee9f. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/RUAGV2502388.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x939468787879886eb2b254864d5c7fe325d5bae60c0ea049155538165e45d793. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/RUAGV2502390.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x541b51b996fc019ae47f5f47efa271d03d291265024852f73d21184ead3cafd2. Chain 2 (Bitcoin): anchored in block 959137 (2026-07-22T14:03:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/RUAGV2502391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59b4ca36ae532e3509bb924221b564543db07ede3af52be8a62a2417fec21843. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T19:04:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/RUAGV2500097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x015355b51e8ca3375abc470a95f09c1813ef0e5ec381c567bb4c7a87b817e705. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/RUAGV2505771.
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