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 0xd0ad0dc8f38fba79e354a57bd54382ff3fc42c3624e2b5ea88615c32d13cb41b. 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/ff6c598d-a9b8-4bc9-9911-ff8f00fbd151.json and https://artists.proofprofile.net/proofs/artist/ff6c598d-a9b8-4bc9-9911-ff8f00fbd151.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 0xc7e759403d77d69ca884f2f5c71bc229aeb519804cbf6f42b94ff63d3219fe16. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/TR1900600960.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d1d3e6e8651fc11ee3494c2557703d961d2fa7927659639b207add0b0e0917a. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/TR1900600961.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x526639029e4dd7f696469cd751abe93ea86990cd2fad96f7efd0b1056643b35a. 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/TR1900700953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31cef595eadee7eea69e0a37fd1ea1163a5d7dd8c0347b10ba35a57e66ca1b3e. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/TR1900700954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8208a7360c96a5d8f5b11b068a89001a4dc04022dcb3354444812ba190fcfe0. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TR1900700955.
Bize Seni Sevecek Yürekler Ver - Enstrümantal
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0aa38a79d48456192eb68ca01bd65b4a877884b84b3d408a1d94480519fa4c30. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/GBMA22328629.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa186c977b20e4f2194d4bbc4f8001852bab289847ef7b4f58fac93091f1f0a8c. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/TR5981400030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb91736c71f2117e0654a48b11cbd934b835ac830c4d51718bddb7bc0e08ee6c6. 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/TR5981400028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x639a06b0764420bb8ec61d143c5896fa83fc046b62f01d6c868d586ebce648a3. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T13:14:32Z), 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/TR5981400025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91a1554a16190b3d1c7fc2e114a6245667ee938942c41d82aaacff0ac5cb3e0f. 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/TR5981400032.
Şiirin Düşü, Şehit'in Düşüşü / Temmuz'un 15'i
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0681bc725d2025e6ff5a6751530ddd4070de18e271eaeb77bbdf5da70b798d30. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/TR3732025017.