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 0x203952510b82451740f6acb3f2fd51daa9e3fddd9acf52c1c1482db51b011ec8. 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/f26c5c6f-f8d6-4293-a719-69fe6b9b9ff1.json and https://artists.proofprofile.net/proofs/artist/f26c5c6f-f8d6-4293-a719-69fe6b9b9ff1.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 0xb65bf67b598e1c7a85fc476c9e2a3ddbab48281e0d8a5524ebdc4a47014642e4. 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/FR6V82538948.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee89df3ca05e646a3902f3227ab9eb2e5d0a9016b48172c7869effcd76995790. 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/FR6V82538949.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85a1f76c3b807226b53aac52e3c1211101c3ea7572721b2e1318d41588e8f94f. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:53:41Z), 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/TR1780700355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7d7c7d05eaefe26de09fd4beca6361913df413528920cba34460f9b4645c879. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T20:38:50Z), 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/TR1780700356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f600f1627b9452dfdfee97e12e43a1fbaae24ba62a04f656a21ce76ead29f8f. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/TR2490700057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a53f14ebe725ccf6515bef1f0606b51a77eeb478973ab850966ef96bd2ff425. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/TR7081200043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x633f23a264c6c038dcfeac6f5583e27fa5c8f35cdd2e163b8af0e5ec61fda6f6. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/TR7081200048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2fd1d1ab6541790b58aace79b20e775f6dfba3e8f7163828459dfb02e94776b. 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/FRX201980488.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf010314f264d5f841fbdc92412ed2cbc966f6dc14e041dbdeb18562a3652f66a. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/FRX201980489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x740ca922124791bc4825047ad4f411383e0f51bc7a9bd546aa444d0e26c1a599. Chain 2 (Bitcoin): anchored in block 956500 (2026-07-03T13:55:21Z), 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/FRX201980490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc167eb4d1ef345a226754357e094d03382828faab31b1a42f58e0d274da3b7e4. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/FRX281903664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe54d245417e8bcb7a745c7e5d0329c158d6f1ef34ef5552825929cee00741d9b. 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/DGA0M2348105.
Biz Babadan Böyle Gördük (Uğur Bayar Şarkıları)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83e2bfc58e0a864b8159a6842508185e3aefd1f05409d2b539a70b40311ee80b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/TR3021900113.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x436c7428cf60f698e044f8fffd7bff7fe39bbe16f961e62fad4afb42364aecf3. 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/TR3021900123.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1193f35e34d9045817ccf14eaac9eeba24c81e6daf5ee2905bd171545d3e68bd. Chain 2 (Bitcoin): anchored in block 960125 (2026-07-29T15:38:18Z), 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/TR3141500051.
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 0xfc67b02ce5d186f0a5f14b254136dffafc5eed406bcb6218d98161f9ab029758. Chain 2 (Bitcoin): anchored in block 960403 (2026-07-31T13:04:34Z), 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/TR3141500061.