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 0x1a41b0993a3c781af3afe04bb3501aeedc815f0fff37d345ae81cf70b6d39a89. Chain 2 (Bitcoin): anchored in block 953625 (2026-06-14T11:37:06Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/25b5d5bb-f9e4-40d8-a98c-6625184a5361.json and https://artists.proofprofile.net/proofs/artist/25b5d5bb-f9e4-40d8-a98c-6625184a5361.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 0x97291c7dbe2b310f4fb8f15fd6981bd9cd75f137582e357611c9b14cb2e33555. Chain 2 (Bitcoin): anchored in block 960170 (2026-07-29T23:52:38Z), 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/TR3531600103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xecd606bb9da5c628ebedee5f146f8b33ace34363f6bcaa3a228265998eb29353. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/TR3531600107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ec9867bb63d00da21c82359966be2e6d7f33a810c8ee7b01a96d4ed8d3211b0. Chain 2 (Bitcoin): anchored in block 960302 (2026-07-30T20:09:33Z), 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/TR3531600104.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8066745036da2d5973fb08ab82aa7d4ce441e00a799896697b49227c491c3960. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/TR3531600105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b4ae539097f0ed2ea1bf982e3a584a223fd7591f1d0bdc191e43dc1c1aef110. Chain 2 (Bitcoin): anchored in block 960247 (2026-07-30T10:42:33Z), 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/TR3531600110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa98da46b2ae91c29bc7f43ca561aeda15d5d2d4a79c16c31423ca75a2bae1d29. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/TR3531600109.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6615d2c0ae8f294591c1f11aa9aeaa56afd123b367997b3f6ecc3ad0da919b42. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), 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/TR3531600106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42ebf2b4db70518b7a0e72aa0b9d4659d17912afaa3e02deaa4cf06c037782a3. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/TR3531600108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xede9cbd8769d04ed6c96bac711a9b816977f245a605c7f9bc33034a85794fbb4. Chain 2 (Bitcoin): anchored in block 958842 (2026-07-20T07:48:27Z), 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/QMDA72200297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5dee5e45b7359b9b3ce94e82d70f7ebdde2dd2cb7583922b329872d26f67daf0. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T19:27:18Z), 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/QMDA72200298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13c6b386533c734563c3c80f1ddb0913b4f9350b78fab6b4c90905516d7cf50e. Chain 2 (Bitcoin): anchored in block 959069 (2026-07-21T22:32:59Z), 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/QMDA72200299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9e20ea1c1e3328745e4b5e2c4c9814886b1e2319d398a3aebed712c3da340cb. Chain 2 (Bitcoin): anchored in block 958585 (2026-07-18T17:05:16Z), 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/QMDA72200304.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21860f690ecccf2f90173f61868d858cf06fb352918ee578d105f95865936c4f. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/TR3531800125.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6135c05d83e3698bb86135e023260669d82fd78ddcfec4c17ebfab2d57833f3a. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/QMDA72201198.
Sarı Gelin Türküsü - The Song of the Blond Bride (Radio Edit)
Evlerinin Önü Yonca - Clover in Front of Their House
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c8e947484e164544950cb61956e51f5ad61d0b4e14f60919824c056e35e141c. 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/QMDA62429064.