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 0xc2a9713bbd4af2205096e39c5f886444aa6782b9f1079d1b79348be9cf56b68c. 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/0904f26e-b0fa-4a71-9a99-955b5c3da18b.json and https://artists.proofprofile.net/proofs/artist/0904f26e-b0fa-4a71-9a99-955b5c3da18b.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 0x9d4d2c5b530e16407373d19d04b1a2b362e9c9349af18cd853383a7be95a48b3. 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/ITI021900447.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e249a8cc96e774788ab5fb861a23d0afb20f85b1c4fbec4e904408dfbeee86e. 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/ITI021900449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x810bc04064688a003d9cd4c01acc0ec7325a19ac941c88a27e4bb15148873dc0. 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/ITI021900450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedcf04373f61edc327638e59244441db66bc3346083bfcb88e6be065aa31d665. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/ITI022200501.
Funky Feeling + Let Yourself Fall (The Paolo Faz Remixes)
Let Yourself Fall - Paolo Faz Remix Radio
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x73de1e89ef4a1f230c45960e6d109da6ea6837b640c634004a3d00603733b746. 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/ITI022300298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd155faf974cb1516b3bc59324c1a59935ca1bea977096bbba04b5a993b8f6f6f. 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/ITI022300299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04dd35e71d8aa55231f4595b0b588423c71661819b56ea227ddeaf1abb68e819. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/ITI022200438.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e249a8cc96e774788ab5fb861a23d0afb20f85b1c4fbec4e904408dfbeee86e. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/ITI021900449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x045113ee247286eb313de9186a52a3c37ee577b3af38de0bbc8acdca64f658d8. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/ITI022100166.
Nostalgia Italiana (Italian Lounge Aperitif Music)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e249a8cc96e774788ab5fb861a23d0afb20f85b1c4fbec4e904408dfbeee86e. 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/ITI021900449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x810bc04064688a003d9cd4c01acc0ec7325a19ac941c88a27e4bb15148873dc0. Chain 2 (Bitcoin): anchored in block 960222 (2026-07-30T07:48:45Z), 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/ITI021900450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x677db7072f22f97645c266677239fabca54bd1b104c7fe790997ca5a31219767. 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/ITI022200436.
50 Italian Standards Volume Tre (Le più belle canzoni italiane in versione chillout)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x045113ee247286eb313de9186a52a3c37ee577b3af38de0bbc8acdca64f658d8. 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/ITI022100166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ced0d45ab0786cca241563416271af8269925496828f2cef5448193e25f0831. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/ITKM32400062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcf663df6385988a7af741bd0a0a6a7ff6bfedbb7b07a10f9c5f03cdf0047ddb. 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/ITI022300462.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x179dd71d43f817164e36a765179f15f397bebcc87ccef98fc810cfcd0eb8b484. 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/ITI022400250.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04dd35e71d8aa55231f4595b0b588423c71661819b56ea227ddeaf1abb68e819. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), 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/ITI022200438.