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 0x8ee9df0c90e06a6609109019006e186d5ee536af39e22ddb77cf6d1bece06433. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cb173555-6355-4aff-a782-7f00ccf27690.json and https://artists.proofprofile.net/proofs/artist/cb173555-6355-4aff-a782-7f00ccf27690.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 0xda4ca08324791bc51c5e0e7bd33d70969493aac4e8ca94595536e79e7031ec09. 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/RUB631900579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x772fec05e951df0e7487210b861af9b267e502f3fe17335822b3b91fcaa03766. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/RUB631900584.
Иду искать (From "Приворот. Чёрное венчание")
Иду искать - From "Приворот. Чёрное венчание"
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x411e971de4d5ae368b2bfa035d6e6d142538ab45c3e2348add5933fcf33a3cf2. Chain 2 (Bitcoin): anchored in block 958134 (2026-07-15T11:47:47Z), 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/FR10S2190398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e14aee122c75a07b35cbe2159b9d00b8de9e4d02bd0984e4792bfaa6b8a5c59. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/RUA582101225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2db7c278b67cf34cd667f0c4de70520f9fb95e828878c37950c8abc43183c96. Chain 2 (Bitcoin): anchored in block 958827 (2026-07-20T07:31:44Z), 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/RUA582105453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80e66b8a8d3ac25fe57d41f6da240c3775edd15c90bab68a1c2c54064316c679. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T17:36:39Z), 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/RUA582107349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20d617490608220f406b0efb2d2b069a8e60d6674781d264937477404e705502. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/RUAGV2301792.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5529da4cae9344884169bb880ef7f122ed3bf42a1816dfd7da4fe342eec1032d. 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/RUAGV2303422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef12dd3c4ad8be4d6551dec92d8e191204b1c43b4b0280b053b1872bd05dd1dc. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:43:46Z), 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/RUAGV2303998.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27fc89ca34a7cbab74e251b264b5d742fb0901132591a476dca0b6f9735bcb59. 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/RUA582101871.