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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x854961370088fb6feda304b2bebf7c36510e114accf022eb9fce8c086ee3ed7c. Chain 2 (Bitcoin): anchored in block 953758 (2026-06-15T07:48:25Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b254f45e-1626-4e99-b510-bc31cce753de.json and https://artists.proofprofile.net/proofs/artist/b254f45e-1626-4e99-b510-bc31cce753de.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Roland band Smižany 2022 - Inchu ach Inchu
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1d9adec32f993dd90dca96488a1fbe65b138608d5955f4fa9e92b8ddc2deb34. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:22:19Z), 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/QZHN52240864.
Boys Nová Lesná 2023 - Čardáš dvoch sŕdc
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Slovak Band-Mekenzi-Gipsy Konty 2024 Ame Phrala)
Gipsy Artep Koťa 2024 - ADa Džives Džava
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52145e3274ca081a2d7d1b45d241b6cf4f3826c1d8a89d408bc2d989ac8692c8. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/QZK6P2415789.
Gipsy Štrba Kariško 2024 - Sar le Devleha
Kariško Gipsy Titanic 2024 - Suno Mange Me Tuha Džava
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe94275685ff27a85e83c8d03fee5a50ae1f1b895956aea6a3480e6d7f0dafcc8. Chain 2 (Bitcoin): anchored in block 958865 (2026-07-20T13:00:36Z), 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/QZNWZ2511005.
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