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 0x426566bcef8a2973db40c2e05d6726d1c3b83723ef0a34aed8b5c404a84db91f. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/d453111e-60fa-4c89-a91f-6c43cd9ce9dc.json and https://artists.proofprofile.net/proofs/artist/d453111e-60fa-4c89-a91f-6c43cd9ce9dc.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Summertime Sadness (Future Rave Version)
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 0x42fa0752fb313f69ef342e31ac490e6b9bbf062181c762ec2dc6e9788ce69f4f. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/IL1380602650.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f6bda40f7f19fe2065131d86c63bb8aeffdb0c1c0734a216b01ce58ed75cd28. Chain 2 (Bitcoin): anchored in block 956383 (2026-07-02T18:11:59Z), 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/ITM2J2400001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeebdd005bfbb902dd86f5c8bb3bca1ba3f07c1cab6c005520e908fb445787825. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEPI82402855.
House Music 2025 : The Best House Music - Dance Hits - House Hits - Ibiza Party - Party House - Club Music by Hoop Records
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f6bda40f7f19fe2065131d86c63bb8aeffdb0c1c0734a216b01ce58ed75cd28. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/ITM2J2400001.
Dance Hits 2025: The Best Dance and Pop Hits to Feel Good by Hoop Records
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f6bda40f7f19fe2065131d86c63bb8aeffdb0c1c0734a216b01ce58ed75cd28. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/ITM2J2400001.