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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa976f11f4fd00677a57548aee7d46b63b8b23a979c10e9bb877141d3d56bd522. 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/f0fca7bd-fc18-46a8-8805-db27d16e130c.json and https://artists.proofprofile.net/proofs/artist/f0fca7bd-fc18-46a8-8805-db27d16e130c.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Ivo Robić Uz Zabavni Orkestar Ferde Pomykala
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e3099c389be2dc528d1c4ac6d50be4f9f7dd07bb4075172dfc54dfb7d08a4be. Chain 2 (Bitcoin): anchored in block 957899 (2026-07-13T19:36:39Z), 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/DEF066316700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x311fbad11a29a50b7e7de5d6e9e292d0234dfb4f3a419acea3c643316e647c67. Chain 2 (Bitcoin): anchored in block 958920 (2026-07-20T21:00:40Z), 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/HRA046913400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ca4c1b591bf94c6e3161c94a6c4b7388bfdf881cd855db455dcfae5d643d451. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T15:24:16Z), 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/HRA046913402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6047ebbd410ffffcbb7126b5c52d4abc8db04d723622f7d11e0444509a2d6562. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/HRA046931520.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2d4d38e2a81220259bea89b13564ff2d888863034da01273e6b124e0c74410f. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:36:03Z), 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/HRA046910572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcddcf906776ea62793dec59b82e11169b10a62011929472e587c01c00c0379b2. 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/AUXN22319694.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dfd39f18f17c42e72f3129bd25f1e0d28bff65e682f46cebb1d2215b52a3d54. Chain 2 (Bitcoin): anchored in block 959089 (2026-07-22T04:34:54Z), 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/HRA040513397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d8248052c6777c8cb5fd00ddc5b134eae93db90f6459f6d7c37c74d84254c63. Chain 2 (Bitcoin): anchored in block 957892 (2026-07-13T18:21:16Z), 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/HRA040613408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbbfe8b44d87bc2a9951841f94050bad0befb50c261b3dfde941824d97562dcb. Chain 2 (Bitcoin): anchored in block 957848 (2026-07-13T10:31:25Z), 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/HRA040613395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9190cda9d0cfc9f3f46bdb3311714d53bdc753bf3bd982c129ffa7188809de1e. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/DEF066002070.
Love Songs (a další nahrávky s Orchestrem Karla Vlacha)
Love Songs (A Další Nahrávky S Orchestrem Karla Vlacha)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8676614d17738cbda44c54ea579d2fa77fcea33a69fc3acc23710362e2b36374. 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/HRA040648858.
Ivo Robić - Izvorne Snimke 1949. - 1959.
Mit siebzehn fängt das Leben erst an - Die großen Erfolge
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40e6344135139a9959bd7761044c23680957957ae3f7eec60e5db5e4112b39a9. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/DER751748202.
Ein ganzes Leben lang (I Can't Stop Loving You)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2107dd4fefcb8a060642fa73506be99186f45f7e7ccc866f36bc1767f9970cac. 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/DER751748211.
Mit 17 Fängt Das Leben Erst An (Save The Last Dance For Me)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc47bf6633376ca73fe9593f9ef163dc641965dc927f3d4f0fabd597b11ecfc12. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/NLHR52129856.
40 Velikih Hitova: Ljubav Postoji Zbog Nas - Najljepši Dueti
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfafe3b899328b2535fb89da9d57fdefa890274f381faa9468f799f658838c2f. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), 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/HRA045830623.
Tamburaški Spomenar - 120 Originalnih Hitova
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb00e63ac563897eb2819862b49f6707fcb5626a98096439369dfcd717b25ab9. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/HRA040613401.