1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x504f48f641c5c2122e9c981f31fc0a8c9634f5ef1631cf2fd0f4c5adc91d9711. Chain 2 (Bitcoin): anchored in block 953827 (2026-06-15T19:59:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/cfa0bb07-64e2-44a6-adad-e9028c302f0f.json and https://artists.proofprofile.net/proofs/artist/cfa0bb07-64e2-44a6-adad-e9028c302f0f.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 → block OTSBitcoinBlock must exist at that height 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21dcdc055860351d42f541cde23f1821efb60a29c86abe27ecc41c0632c9f9da. 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/ITL521250802.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x793aae6e133acf507fd0785f6e8c7978548b40ed9c78831da3c78549f4c21174. 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/ITL521250803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7c4dc1fbd450a6291ae2e40caa1aa90b34d6af5f2c44b957dfce58f51867492a. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-16T23:35:20Z), 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/ITL521250805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7741e8a877ba0c7fcfcd9246c9157078d2b7174c280b7102a656ec0f91f8f9dc. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ITL521250807.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6043caaf206911f1d7d83cf06fe581ed668fcb0f97d9e2213dd0f4e468d459cb. 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/ITL521250808.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2cfd72e7a481f9f781742749ee768d9aef8006f32f462c0dc9e4aae3b5a3a6e3. 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/ITL521250812.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b30acc5cef6e14fa1689b3d5bef8a46f89c5b7a8230e36e26b8425b542704dc. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/ITL520948203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ed87f8041df3e3f662dc4e362cbd9c2e33f296a60caea73b3edaf5ba1b97f29. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ITL520948205.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8b2c9c2034321147c570ea940ef7f5f19bbbb11cece4a74948662ecd15ac0c6. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ITL520948206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2875a5e79c59128cb1a8717ddb69b5e22eb1ad814c29260999382545dec53df5. 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/ITL520742612.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x708fcd7cdf7cb7d898d7225a9dc3bb068728ce60d3c41af56f8eb04285f57fb2. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/ITL520742801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f018cbc4a4f5e6a7058eedfcd0a761f86e9afbd7953583017cc5b3f57e41797. Chain 2 (Bitcoin): anchored in block 957212 (2026-07-08T18:33:44Z), 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/ITL520742806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3a622a4f35c0baf905d07e55f471fe0b78d5ac0db190b7e8aeb2c57ede9535a. 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/ITL520742810.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe51b5d9af59c993e7cdf421225c133e3cb7678ab20df9aaceb02fc144c663d79. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/ITL520742704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x398dfc34414962f33f4b294fe48a68692ef3462dc1e284f33bfe8f20568ba6dc. 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/ITL520742707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd6a9089a086d4ffbd953265bd84079dac072f1e3a0c5fd4a3dc9820a5c867e4. 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/ITL520742709.
Balla Taranta (Il ritmo tarantato del Salento)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94516980d252b5724895d00e8ae6e96c48d4370dedbf34753ecadbafb4f815a6. 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/FR6V81860814.