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 0x46e804818e1fca192cd9519109f316e65bd0308b94d8ddee9632dbcc1cea6514. 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/f05ac05a-a7b1-4db7-97d3-1a720b3cb333.json and https://artists.proofprofile.net/proofs/artist/f05ac05a-a7b1-4db7-97d3-1a720b3cb333.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 0xf3755d5220931203d98cb53e3caacaadad8be80b7c35c1fdbb9ff963e6e26c17. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/TR2801000524.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x142d9c4b7b4873c28db40d91d1348c372cb35afb799b391723ca0b0a647501a2. 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/TR2801000076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd93d4772d86a2526fb7b2756c506d111aec84bdfa1e3e240d4e01adf03f0de0e. Chain 2 (Bitcoin): anchored in block 958075 (2026-07-14T22:55:31Z), 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/TR2800900066.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e846297fe7c07b7805168d0877dcb4209b2353b34c5d6af356ec1109d003a87. Chain 2 (Bitcoin): anchored in block 958342 (2026-07-17T02:58:51Z), 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/TR2800800037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbf38d0d4a2ec65418cd537b2f3ffefbd675b83d08796f50af66f6796f037d47. 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/TR2800800038.
Bane İmam Hüseyn - İmam Hüseyni Çağırdılar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67f713d9a86635e2cc25f695ee6874b1800e442f6fea6c652e6ea001a2823b5a. 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/TR2801000512.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d156afc34928949438ccfdd2675df227eb33cbd3bd70c4483194cdcb954bcbc. Chain 2 (Bitcoin): anchored in block 959080 (2026-07-22T02:41:09Z), 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/GBSMU5926006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a9da132ebfdb4978612ff95d128f99ecebbb607c2575e96fd3f12d159e84aeb. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/TRAVS2500001.