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 0x87fcf4cdf82101ef93d7220dedc39a4319892a0ff48d540094a5cde82b5c431a. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/USBDP1900966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xee59cc196efc5fd8690267246528eeee6224336000beffce88ba7b1fd6d8ba54. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USBDP1900968.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5f4eb7257b8b62dcc5834cd236b47bb7d832241bb045c497992f17aba3d1c8e. Chain 2 (Bitcoin): anchored in block 960383 (2026-07-31T09:50:37Z), 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/USBDP1900969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb885ade040b9ba1d6ff3ea44dd49e7a2c6db25774e146a3388abfaecaa5bb2a9. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/USBDP1900970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3067de1affab8f2b50a12d7a214ba31aafd6a6a8c11dcb094ef8c79f7bde86c4. Chain 2 (Bitcoin): anchored in block 960383 (2026-07-31T09:50:37Z), 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/USBDP1900971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b916f14fabf204d4becb1c7a85d95436dca57214f56389abee8544678df6b4a. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/USBDP1900985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac378423fef8a5de7a0542edd54d5e4ba3301dba5a5266b9d0b769c395201d46. Chain 2 (Bitcoin): anchored in block 960321 (2026-07-30T22:27:30Z), 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/USBDP1900924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde8b2c39d2e94a677b3b05082ea0d9c265288742c5e3f34f694bfe7c712309b0. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/USBDP1900927.
Phuture and Other Classics from DJ Pierre
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x836e39ca0f43fda8e8bc0cbbc57820e88eafb9566582c3a470abb2ef82af551a. 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/GBBLG0100394.
House Classics IV (Presented by Harley&Muscle)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc33980246a8342c3a89ed775bb82ea280a5391f89e43ec41d1e88f6f69ac5a70. 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/GBBLG0100395.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x80032dc24519afa36845939a7e78cd9cc795d56f97d0d05b4e68c19fa444365f. 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/GBBLG0100396.