1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0x8779683c587dd10737a3a0a40359983387067c789ea4fffc91580d8873c6f934. Chain 2 (Bitcoin): anchored in block 954615 (2026-06-20T22:44:50Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c6c23d64-444c-4d9c-9093-ed31366c333f.json and https://artists.proofprofile.net/proofs/artist/c6c23d64-444c-4d9c-9093-ed31366c333f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Muz se zeleznou maskou (Original Prague Cast Recording)
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 → block OTSBitcoinBlock must exist at that height 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 0x38c81d7c7d463a40a675885bd07c1b35d97288ec23340894c3641971e955cb71. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CZA231700392.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe011c531d92d4e8c77f43c1e2a72a52ac5d6904624e645df23bca8407b99f18d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/CZA231700393.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e7d2ffdb85b1b4785e63826290b5fccd7c4c0562d7f33a6bbedff2d13ab8c7f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CZA231700394.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e2ffdb8d3d63f00e88d6d37300cb6841265bb817bbed6b8b159be0a31887558. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/CZA231700395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02682ffadf7d688585ed7b6e83580e2ea42570ad7bc4675e2cb4348947cf1bff. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CZA231700396.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed4a29124e2f491a2b1171a54b02dd4e4f2c522aa31bffe6f1dea0ba95f76263. 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/CZA231700397.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce8ec761c68cc77c3931e2247c01a029a9367b8bf3aa7a569e9054bff65eead2. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/CZA231700398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc3837fc08754af5ae0aeaf47e3035cee4e45ea7a0a2d5f1f4bc042a296f0968. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/CZA231700399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9dc288acef1980a5dfd646595e13d383700c5a42e7a3e43eb3e3e714e7e2ba7b. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CZA231700400.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2e184d4ee102d27aa94e2fec230198cab046f12c8cacb0dc8e2f8aaaaa6ba80. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CZA231700401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef104ade72cabc068b420e69b8b468a3ea96dc0efa845567c094758949a350f5. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/CZA231700402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf16d373b3cd97219937d6a320c77b2b9a9a8b7f7bfc79563644bbf95d60cb410. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/CZA231700403.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb212f4bbf3cb70215ea040f7853759ce6d429c29ea38282082561e892d732c11. 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/CZA231700405.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1421bb7450f1811e4d53ed1165cfd6569fe50e32e65d4e95b84bdb9923938d16. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CZA231700406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cf1306cf3871f72676784e6915510659575ecbedf8083523f52512ef64f0fb1. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CZA231700407.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0a9a0d1e7c7763ed833c004dc882fed0b5d60def3221ff01b4cbd407b48eb69. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/CZA231700408.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc19683e42fe0b314d29e20852341334088470dac7dc762ba503b63c828b1089e. 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/CZA231700409.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdaa1652a74e5eaee0a5d6ef5e76f532ead190f3a8c6c4e4abff01b0cdb44a02f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CZA231700411.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9617bbea1907ee543d0e8f2e8ed75357e56aa7a1f3951914a48b2d8e50e4608. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CZA231700412.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x352b848b2830e0d6757bf13e18b97f1145266e41960a7d040e1eeb9c645c0151. 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/CZA231700414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x744b89f55b6670422e8d3be1ff0aebe9c213ec9ae7a7c2e3a6e96df391e4ba5b. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/CZA231700416.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d1d8ae39c60bfd16e2ae7cc97b524c688c27bdd0b9d91aef87b83cbc2272a54. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/CZA231700417.
Original Prague Cast of Muz se zeleznou maskou
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x93575f54eb2703b40194ea7eee602a9698f607c287664399cf3d4af9bd678277. Chain 2 (Bitcoin): anchored in block 957050 (2026-07-07T14:41:13Z), 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/CZA231700418.