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 0x0ace77b74d85a9b24fb936b6ca4dc6b19ea3e978a77e33b7e65e58175987df20. Chain 2 (Bitcoin): anchored in block 954717 (2026-06-21T15:47:51Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f31a98f4-28a8-4302-b1a8-272cca58444b.json and https://artists.proofprofile.net/proofs/artist/f31a98f4-28a8-4302-b1a8-272cca58444b.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Compilation Summer Dance Commercial House Songs Top Hits New Best Music 2013 / 2014 (Radio Cut 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 0x41c936e5a41eaeed42feb1ca0c4d77e0152c55078bba59adc2a9ffc13becaa4e. 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/ITBD61300983.
Summer 2015 Dance Commercial House Songs Top Hits New Best Music (Radio Edit Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41c936e5a41eaeed42feb1ca0c4d77e0152c55078bba59adc2a9ffc13becaa4e. 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/ITBD61300983.
Compilation Summer Dance Commercial House 2016 - 2017 (Songs Top Hits New Best Music) [Radio Cut Mix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41c936e5a41eaeed42feb1ca0c4d77e0152c55078bba59adc2a9ffc13becaa4e. 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/ITBD61300983.
Summer 2016 - 2017 Greatest Hits Commercial Dance House Music, Vol. 4 (New Top Best Songs Radio Edit Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41c936e5a41eaeed42feb1ca0c4d77e0152c55078bba59adc2a9ffc13becaa4e. 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/ITBD61300983.
Latin House Summer 2015 / 2016 Greatest Hits Top Songs (Commercial Dance Compilation)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96bacfb2bba9c09fcba66adc05b05f419148e3f8efc2a958e87a08bb68252085. 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/ITBD61510003.