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 0xf319ff5bc86fe415be9e616e1549a231839050e8574b6edaa166a2b82f5c9e6f. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/87bcc8f8-aa49-47c4-8e49-cd2d00f60fba.json and https://artists.proofprofile.net/proofs/artist/87bcc8f8-aa49-47c4-8e49-cd2d00f60fba.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44097e11e3e7a43c89b8d1ddabb5b2fa5e9f297e9061884682b30627c71761ac. Chain 2 (Bitcoin): anchored in block 958251 (2026-07-16T06:29:25Z), 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/TCAHY2480646.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x631a6f2d488c08ec263371fc2efabecc888c4358c8d3c9444049fc22a38a9eb4. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/TCAHY2480651.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d3789e1e335a45a4c1f8ec7f347e7e54a615684bb8216136ef2657192ad8350. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/TCAHY2480654.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4ce86a8bfcde1fa104b35554701f78d3b018fc313aaa52c1c50b7dd4218206e. 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/TCAHY2480660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf26ca4fb5b6531b24d41191de1c73720c6d4420fdeff341c19cf0478c5f0cb5e. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T18:45:39Z), 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/TCAHY2480663.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x30f115464faa331a217ddbc547a42a6f9c4bdca2c773778e2719c78c7c46b1cb. 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/TCAHY2480664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d1926d4c73b12e87cef616bd48b26dfc127dd89c38cbcb340cf26e53713ce8d. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-20T01:47:34Z), 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/TCAHY2480668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x966f6638e4d89e66e2671b887a038cfc03c72bc5b0a80093e0dd00ed2bcdf864. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/ES7580502650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c2526d80969eabc314de7675618d01b08ef367411b743b2113da016de776c70. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/ES7580502652.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x551178e6562a69d0e125a18f67cebf6449229e509c8a8c2ccea5d0d81d21c617. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-17T03:51:57Z), 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/ES7580502653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98934ef65a433b955606728ab444ce61ab8cebb51de17814df36c1b1f5b5b870. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/ES7580502655.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e0c86b9b3a3276f4822b6bb5fe844ab5c0e4702e1fd6ec2591e8f39e573fb7e. 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/ES7580502657.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c375ac489e4631193ddbe34cc4edb8aec8a0f01f542770f4f63d99660dcf256. 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/ES7580502658.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f2b6ba7d55ccf09ee9c4c2897c8133f2b9c4c5141cd77c94c5832c8af84f0a3. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T03:32:54Z), 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/ES7580502660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e5b34f714b25698854fa62ce15d1d3f4a0070988cacec7f8a1690c20ab9f48d. Chain 2 (Bitcoin): anchored in block 958721 (2026-07-19T11:02:33Z), 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/BRVWD1400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae877eeb66ff2a2f397f1b0b071bdda34183b96ef88dddf02055f23beb68ee00. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/BRVWD1400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb56fe7c42d8fc55e19d93049edb044329d419ad76ef4e72fb1eabdf72e2cdc0. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T18:02:53Z), 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/BRVWD1400057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d727e08870087b4fc2786cef1f247cc68ea710f7607e03dbcdf0b95cbf8b0b4. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T17:32:35Z), 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/BRVWD1400058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc5aece7b2af4e49739372c44367977d438113c2b1a26ee459c87f3a32dc4a58. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/BRVWD1400066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x525103e04cc319fb5a418388b6ae02e244e98b4b1e418f7611789e681ef1cfe9. Chain 2 (Bitcoin): anchored in block 958793 (2026-07-19T22:59:45Z), 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/BRVWD1400068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf721e0fdf3c0e6c6db2d0154e23deb0bf0b98bfad1d89a8c41d8d12d50d06ac8. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/BRVWD1400183.
Tambura, Ljubav I Domovina, Pajo Kolarić 1821. - 2021.
Tamburaški memorijal Hrvoja Majića (Uživo 2015. - 2024.)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcefad9d8b35ba0a439738bf38a4143b5e7ca50465c0759ca25c4ff9cc04fb2a4. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/HRA042500420.