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 0xca1fa0d9fff09fbd18c817a8aca299d03235bbc235eb7a765b743825fdab60f3. 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/4e19ea06-690c-48ce-81e3-a1d422c21f71.json and https://artists.proofprofile.net/proofs/artist/4e19ea06-690c-48ce-81e3-a1d422c21f71.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 0x97cb286dda6dcffe10b3cc271aa31634b37e6a74fc52361e206b45c29a776e20. Chain 2 (Bitcoin): anchored in block 958493 (2026-07-18T04:34:53Z), 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/TR3380700051.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xebacb51d590df77cd91205d0183126d70fb89e6a61e60df3df3c1d6935168500. Chain 2 (Bitcoin): anchored in block 956420 (2026-07-03T00:42:11Z), 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/TR3380700053.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x979bf246c373afe3c1bdc9a175f2d1c692255e6be27c3b531b926ae3fdbb8084. 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/TR3380700057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x974a5790dd4ed46e449c4f5c86fd57fadc6d4259ef039490fc81631ded4302bc. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/TR7801700033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69d9b77acddf4952a064801d6c1ad97ba7b525312c5f1cdd76fd081880ae7be1. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), 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/TR7801700372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x607434e302a8501b05d14f7b59985c112347b904beee65567a80c28411422308. 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/TR7801700374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f543495c803c75098797c5bb648e4571ef3e522d4686cd420acbc7302f8acba. Chain 2 (Bitcoin): anchored in block 958783 (2026-07-19T21:20:45Z), 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/TR7801700375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x967d73a5bd35787554ff50380254ff637d1b6c49cd39e74f1885ae052f0a257c. Chain 2 (Bitcoin): anchored in block 958602 (2026-07-18T19:28:16Z), 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/TR7801700379.
Aşk Bin Defa (2020 Model: Murathan Mungan)
Aşk Bin Defa - 2020 Model: Murathan Mungan
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ef9b4cf01c801ae227f10179b334e3949f2aa26d2d96c609efbbe07140da72f. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/TRBDY2020705.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ac500c320b7fa175d335a60d89d0dffcc379af8c9e18641858885b11387ae7e. Chain 2 (Bitcoin): anchored in block 958340 (2026-07-17T00:53:26Z), 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/TR9522100030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ccf67bc4b4febd4922feec22d2d3783931b6c7ba847d74f94fb6512ef1953d2. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TR9522100118.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4960fa98498b53a27ed10791ac8ac5e416885533e73846df61e32a9370f0ffad. Chain 2 (Bitcoin): anchored in block 958552 (2026-07-18T13:15:29Z), 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/TR9522300329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x856533549b4962688a227b343da19fc64989b5f1198bd529c76ee164093023c5. 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/TRADO2010130.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ef9b4cf01c801ae227f10179b334e3949f2aa26d2d96c609efbbe07140da72f. Chain 2 (Bitcoin): anchored in block 960203 (2026-07-30T03:35:13Z), 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/TRBDY2020705.