Karol Duchoň (21 April 1950 – 5 November 1985) was a Slovak singer. He is often dubbed as being one of the most popular singers in Slovakia. His career as a singer of popular songs began to unfold in
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 0x2ea8704af42839cffcc7a316a877c84700fc69c758efcded67afc08312247b6a. 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/390df4da-1a93-4d80-a9fb-1dca66130474.json and https://artists.proofprofile.net/proofs/artist/390df4da-1a93-4d80-a9fb-1dca66130474.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0xac96c3b52e749abd75b8a1e373235cd434f3525e08cc5c31c01a7dd5c7f9be60. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/SKA127429404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x991998b0bdec46fba0b3b8e3495e0bf27cecc13b1d95bd35bf091418dc4b88b6. Chain 2 (Bitcoin): anchored in block 958656 (2026-07-19T04:04:08Z), 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/SKA127429405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xba0df301bc9bc78ffb4648c6441ff7387356404ff60d72e66833e4cbbb3f6f53. 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/SKA127429409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7323803d083098cba781338b04f2b0f853f1629ddb73241c70e81ca1fb35372e. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/SKA127429413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6c39fb4ef9c5014e95777604acc0ea50c3129f1378bc3cbf2fc77ef0170af4b. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T15:31:18Z), 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/SKA127650805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5b1d5106fb7d309033987dfac1607c5c0529f5c96cb1ae59cf4543615832e9d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/SKA127650806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59397ff938bfdf5da47837ad164d5817343919759d9d71ab5d266a086fc73e63. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T23:03:53Z), 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/SKA127650808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc1613e6bf083b44060cd5641117bced1212b31d2c28e33263d82a91f870605a. 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/SKA128084807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40108b434792fb67f9342c613f56ddd2a78f8742f2d894de65df6d661f6cfd28. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T18:56:18Z), 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/SKA128084810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74d3b690f77901bfc064b6f55602c89a5f48a26e74fdb2abf7e5261a9ffb0ac3. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/SKA127673302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7ccb092b615700111705238410fcc02d1e98ef427b57541fba55cb3676f1fd9. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/SKA127673304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c4c8ce87e17f6de798012a32a7df3da66b3fc0338259c45189ab87187f48465. 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/SKA127473305.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8756f470598af40b3f80f3df65779c10ac81b6d3d2863f26e7562be30761e9b8. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/SKA127745601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b2e3b8a07f6a459684e26ad4b477506304bee9877cf18a055ebdcbfd4ef5d6d. 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/SKA127874506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fc5c7facd4e7179305029b19158e43878b782554ae1e6054affea97165a42d2. Chain 2 (Bitcoin): anchored in block 958720 (2026-07-19T10:53:46Z), 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/SKA127673311.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x730342757c90e0a78ae64f7c71cb6d6fca0c74b65ea9743c008542c7676fd06b. 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/SKA128073312.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeb825f4ccc9279894811385b8d473c2e3d6efec5a4e9389666f5c79f431a894. Chain 2 (Bitcoin): anchored in block 958901 (2026-07-20T17:46:57Z), 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/SKA127744401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5df330f52c0ade18f150a6d7a0e3dd2c8c5e9f2d89856fe251da1280ce01d40. 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/SKA128462501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f48ec71039eca23759e911038e2949d622bc14e873fa07382c76b4ec07192f1. 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/SKA127221319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff063fbcb94e6ef76045c7dbb2488b0b1fc226e42e62ae5ae02fa77b18be88c9. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/SKA127373319.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16a9a626c2b25013ae07bf6d10f73374fa89e66561b61039295cad3b27186079. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T23:06:48Z), 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/SKA127388304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94053b4601927bb3bf9d1e58e1188d492823a5d9498ec450e27435a2ca9f6740. 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/SKA127641702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x685658aa30db57bcb35fc120efc0b455f3f91b1160b44e121400c7f74b86d86e. 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/SKA127325302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7892f489c7366926393607a62e1ccd9bd72c5539ba0fb4e8c8d1971ceb0028af. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T21:37:02Z), 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/SKA120211817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0af47a6a82160ec6496e81d167d62874b4eea84ffdeae8dccc26c98995fa1a17. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/SKA128004706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b9c473f97f57a033bd14b6797fb8bd8254f890462c672a8bf2cf1bb8c3e9dee. Chain 2 (Bitcoin): anchored in block 959001 (2026-07-21T11:41:42Z), 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/SKA128462502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x864cefbe4b6835309895e2579c90f874d5d261fec2cfa334ee5cc781151eb0fa. 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/SKA127220901.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4bed2295dcf6dea101e28330669d4de069696a7993cebc5bd001031b24c15f7. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T09:54:01Z), 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/SKA127650807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb647252fd318c265e1292c2345933fea462a3a247502a9b8efafe5386443a73. Chain 2 (Bitcoin): anchored in block 959107 (2026-07-22T10:15:52Z), 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/SKA127641402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c1b0421a9ec288d55139726e10f24a35c3eca217560db5f9e1e29ff37a69bc. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/SKA127642101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d06bb7b3cf7931109353a5136d2b59b4cbc4d130e7902c26b4c4ad3c1e1baff. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T08:53:58Z), 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/SKA127650809.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x928465a4a7d036bfec1781749db103de034b6b0dd12c5391ab58e01ab22016c7. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T06:48:00Z), 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/SKA127650811.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cbac3a39e18783efe62a5d877b70a33ddd3eecca98f462f6e31c77112461e36. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:24:35Z), 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/SKA128511302.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x917f08b1a0365ebb92dcfa1d7074db8a41faa9dfc3e488167ac59bb93f359b7d. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T07:04:01Z), 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/SKA128004707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b9c473f97f57a033bd14b6797fb8bd8254f890462c672a8bf2cf1bb8c3e9dee. Chain 2 (Bitcoin): anchored in block 959123 (2026-07-22T11:35:32Z), 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/SKA128462502.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb99cd5aa1b809b823bbd884afc847ae64b4861eb3eb58cf81def3e5abfbaef5c. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), 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/SKA127099101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b2e3b8a07f6a459684e26ad4b477506304bee9877cf18a055ebdcbfd4ef5d6d. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/SKA127874506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78015c8f439fc2ab296567bbfe89d8490373116e417f2b4658ae582ee32bf3aa. 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/SKA112396001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b89ae6c3b12efad0cce58246c652e8915b7eacbd68e03f2bdd6ccab168ad0c8. 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/SKA112396002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x007885340ea4975bd21ec1420f2c637354f4d7b067d7b72b03e11df00a88518b. 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/SKA112396003.
Úsmev bol mojou kolískou - Remastered 2024
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe9a2ec808b75a058f8aaf2a800c6c87684ee156ccab9b04d01cbd1e77cf36bf. 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/SKA112396004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x953e8dfecccb29925b394bb8aac996daec2799afb53c6514d4a2bf634dd504a8. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T18:38:40Z), 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/SKA112396005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe465b4f4f682f2e3467b853a601292c653b3141d860d532bf020347e30dc3849. 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/SKA112396007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x150b889e8817ac108957840246105a2cc9d63da2a400b14f85cc1e5df6fba76d. 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/SKA112291001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc72ab04a801fdbc7e3e6b1001e4abf3b748bda502a0a1352f39ac6da5fb96df3. 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/SKA112291002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa39aea6c44f4bd7b366fd31ccbe49645923e56957c9e48a0d04ef649359a9216. Chain 2 (Bitcoin): anchored in block 958853 (2026-07-20T11:37:15Z), 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/SKA112291012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x131faca99c501b48457fa674bd70f68f3f4f2f08f8ac3e357385d5cfdf99d3c1. 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/SKA112291013.