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 0x102ba3bed848e091f77e184fac1dda5ac946e60ae737d1d4ee60822257a3fc6b. Chain 2 (Bitcoin): anchored in block 953596 (2026-06-14T06:21:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/09efacad-a7bd-454f-a918-94066273d4e2.json and https://artists.proofprofile.net/proofs/artist/09efacad-a7bd-454f-a918-94066273d4e2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Tsatsiki, Farsan Och Olivkriget - Musiken Från Filmen
Min Pappa Marianne (Original Motion Picture Soundtrack)
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 0x216eb3839959b59c4ffb3228099a01d8d88e51616545098372a0d46e37716c18. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/SE2EI1100690.
Hjerson Main Theme (Original Series Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf16fabe526552654ac88d6f018e9dbc536b7818163bd11f5a5d421affba69adf. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/SE2EI1100725.
Trolltider - Legenden om bergatrollet (Musiken från julkalendern)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x874410e0b0d100547fcb241d1874c209bbb0f910164a73858e5c73e7b8c0b90f. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T20:16:36Z), 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/QZWFN2392398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa75d0a5e309b5519a1099eba68d02a8f483d4f48a6ba500ba995699f255fb0b. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/QZWFN2392399.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0490d9bbbe3c2ba7283804079fb1577cfd93f4158affe99b91ebf0f11a01cfd7. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/QZWFN2392401.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4f7f8bc7e35761b0c8a39a76e9dceb9d3847c0682f1b70f4b2333cfa7bc9d8f. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T12:33:34Z), 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/QZWFN2392413.