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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf43cf5dcf47a1846de2b6c93c6e410cc7aa8b10e0bf76aa9d8902f2f82b58518. 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/d645163d-bf9a-4914-b8ac-3e380af20d8a.json and https://artists.proofprofile.net/proofs/artist/d645163d-bf9a-4914-b8ac-3e380af20d8a.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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7d4d1b5186ab4f8c05248d8c2f334ffbed07caddf3570bd0852aaed496e6a9b. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/FRX282176175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0780bc096a4d91c4d1ff3663f650b25e726c49333b9ea6ba394c44190051d9a. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/FRX872185073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacd475337a01ed0e3a144b480678e4eb3e8606f7479766ecc2f849f33cdfa45c. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FR10S2266619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacd475337a01ed0e3a144b480678e4eb3e8606f7479766ecc2f849f33cdfa45c. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/FR10S2266619.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd8d1bcd0b5254d17170871963c3a3012b220418972faca35b624c0ce1a1fa39. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/FR59R2293510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefdbb80383dfef080762e0584136bdfe0aba300c3527705a280728f35c6263bc. Chain 2 (Bitcoin): anchored in block 959023 (2026-07-21T15:22:58Z), 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/DGA062257676.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60eed27e42e023a1c35c10478ae3eb93d3835825e23347dabb41931ddd3f2915. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/FR2X42369700.
Я не хочу любить твоё солнце (Из т/с «Чёрный двор»)
Что делать подростку? (Из т/с «Чёрный двор»)
Что делать подростку? - Из т/с «Чёрный двор»
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6900dd4ef1bcb968feac6d8bc37ba553aab2fe22191fabb6b12b764b9ca6100a. Chain 2 (Bitcoin): anchored in block 959008 (2026-07-21T13:14:05Z), 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/DGA062337999.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4e02d2803d3c830fa5a8c4e28c8694bdcf2f47bba73e09de2f272a44d2945026. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/DGA0H2343291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c8bbda0c2295ed89009c6d86593636ea8d3256b9202dd41707b0fcb52f76714. Chain 2 (Bitcoin): anchored in block 957882 (2026-07-13T16:48:10Z), 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/FR10S2529082.