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 0xcf6da43808aeb5c662a8a110bfe25b633358d893741be6f3e6bd30c578342133. 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/e05a737c-e1c9-444c-89d4-f65bef51ab3b.json and https://artists.proofprofile.net/proofs/artist/e05a737c-e1c9-444c-89d4-f65bef51ab3b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dance With Me (feat. Joel Sax) - Main Mix
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 0xca9761d820a651da0dc14e15be9c58b66d444fa72d563999535ba1fee0acc475. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T07:10:53Z), 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/USLZJ1506444.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x807f794ccd4652093a52f124daad6e66acd566e17c2faae6fe4ff9a2a264db5f. Chain 2 (Bitcoin): anchored in block 958357 (2026-07-17T03:33:42Z), 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/GX3Q92465589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb7775e7190e17d36f1fa11819bebd267c25558bf572fbbc7a254b57edcce77d3. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T22:17:57Z), 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/GX3Q92465227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a66cc84ed00ae8dcf16c48173c3469bcd7fcd28539ae3eb7c85c4cacbd89458. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/GX3Q92465134.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9803706aa4d4117fdefe3914442f60fec699a4243d4a5fad0a7826d676865c19. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/GX3Q92465204.