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 0x4da9dbdc503da06ccbc2d6f98f7680745fa8645efe1fcab93282ed600f403798. Chain 2 (Bitcoin): anchored in block 953727 (2026-06-15T02:33:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/917dde2c-0c95-4cf2-bfb6-bfd873001bbc.json and https://artists.proofprofile.net/proofs/artist/917dde2c-0c95-4cf2-bfb6-bfd873001bbc.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 0x24eb583a33b19db6ba344b76cf567564d9e4630aa93fc013bb823f289d73a10c. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-17T04:11:45Z), 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/FR96X2046101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb49e837304955b502b3c579e50b01efc597f85fac54d89ad5a1a4b86f6fcf3c. 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/FR96X2046106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa54ae5e2a008e47de024b11feae9aa496b6b228883ed1d9b3994eddc9f8191d. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T05:24:56Z), 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/FR96X2046107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbe6ae58651f5efad02a2cb20734916464d7cdd208c1dde78e16389578664107d. 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/FR10S2084221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90f190b8496292a081814c55b60ea983ecfc770b5056c4041f3c97e659af4a09. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/FR10S2084229.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9b893a02a4c74b83c8e884d8d92a26ae9313c867ec242b79f108879cd9b2235. 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/FR2X42194048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c02e47e26ceb7b257104fc6c3571eb401ff9e57c0a6fdfa648991285c5bd719. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:07:04Z), 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/FR2X42194049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd32cdfb80b54d1546a58ddfd6c74e567d9c4f0e77cc2ae1c11b1b3ff0855e4d0. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/FR2X42194050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2376cb97f5a9e1446643635ebcd76c664b1cf4d7f23d0f2a1a0d952f28cbe0d2. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/FR2X42194053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ae6e0686730e2922e5fdcb5da45e5d939a1bff691c2ebed76dad2ae1042e14e. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/FR10S2237868.
Говори о любви (Club version songs 2015)