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 0x2daa74eec524f7350dda5179d9fbcef02d91b012b9a6965a358d90e1e8668574. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9aaea1b9-0b10-4804-a5a3-f5f619ed837b.json and https://artists.proofprofile.net/proofs/artist/9aaea1b9-0b10-4804-a5a3-f5f619ed837b.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 0x0a61f176e5656e52b7c2eeca2cf1cfcd60e52d8430da79a87f668d9e0a1209e7. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USJ3V1147069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b5325bb9984ae9f3507e7ab220e0bb418470624eadce45382c85c2be7d2fdb6. 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/USJ3V1147070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a98d2c003c82467e225429ca4a5dc943857e5f90b0c8945d6c8fefc84e67f77. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/USJ3V1147072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36e161ebaec9910a76a86ae367b65f32936ce21a8cf3e098e0e704f437cecf63. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USJ3V1147074.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18ff67dcbe29bea4c8ebee96bb019399aadc679f2ea51072427489c59c81f0d4. 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/USJ3V1147080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb43fe0945eaa9213d35c54aa2b5e7dc1bec9e60efe3234fb0e994bbbc876dee. Chain 2 (Bitcoin): anchored in block 957788 (2026-07-13T02:37:37Z), 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/QZXLZ2529069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4595a4d40043010aa0056e7dc15b4e6e052350d928cc7d0464ead89c60fe122c. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-03T01:01:38Z), 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/QZXLZ2529070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb1a17bab23ea97119ab7ed74eff103a05bab31840838729f5a16771029e50d22. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/QZXLZ2529075.
Bailando Banda (El Baile Banda) - Versión Alternativa
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La Historia de Tommy (Dile Que la Quiero)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94ee649e78d76739340b39120ade78c9b19c987a0b7c70da5037aea776212173. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZXLZ2531776.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x81bac1a51794dfa7f7a743577567297f391e85dad06390834465d916508e35fd. 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/QZGLS2155305.