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 0x66d1ba101559b5ff7fcdb11310543f54d3ec17c16a647efc1f2eb19c4187002b. Chain 2 (Bitcoin): anchored in block 953742 (2026-06-15T04:47:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8fc89da3-9d16-4470-8e71-16a51673c140.json and https://artists.proofprofile.net/proofs/artist/8fc89da3-9d16-4470-8e71-16a51673c140.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 0xd1463d3d1569596db4a6cfe4a97eeca4d0aadece79af66643ce93401a11e9b13. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/TR6831800469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x637c408cbf8adecd9bff55add572667ae164b86172881561a512dfa967cfd31d. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/TR0650113227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecf0391ba1d7257685e91542e449a054f386eae8dfb34b0a98c4df8de48a32e4. 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/FR26V2008031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54b49adee6be161605e1e8e943282801a3a7d4a48b396b2087a1672495fbaf87. 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/TR0650213536.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe36af4bb694f63efc33bb57521c23b3d18a001c58d44682e42c7abde9443f73f. 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/TR0650362660.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaea445c3ef29db2e48f39f32a84649cc4f0c6fd5e6903b587475e099db1ad05b. 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/TR0650362668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7bf0c8b8772063fb44e06b6087ef0c3dfd702377a0ffe656072d959ca3e5809b. 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/TR0390801072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x545703b4756de45c137ecb2f24a1acd0a909586e8edd6ec2521d49e24e9b0672. 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/TR0390801073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4010fccbddc98c5b2c4679c42d671fdecc64ba632f9ffd11b9dcec0e45c48ab. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TR0330906985.
Türkülerimiz Var Bizim, Vol. 2 (Yusuf Gül ile Düet)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xca404b05e12c3cec25865c99a1f4be35980334e034710079d6c95188b247699b. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/TR0431302425.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8efc6eaceaebe2892b451f2cc97edffc1401a7839ecdb7f4924b9f44b46872f2. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/TR0330603802.