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 0xa1bf4c70c64b650d2465d5959dcdf3650f7b096d52222c31d4d76d2036a2ca10. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/b480ac9f-9942-4b72-b43b-490e1eacec94.json and https://artists.proofprofile.net/proofs/artist/b480ac9f-9942-4b72-b43b-490e1eacec94.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0xc5ec1de19cd162f2e314493e0e88938366934119ed534ad38e5cd9f3c40ee504. Chain 2 (Bitcoin): anchored in block 959024 (2026-07-21T16:53:26Z), 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/BEN581300374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbfa36f2b8327ee1dbb72ac520808d92402dfa9c321e379a920644cc3f4e4f2cb. Chain 2 (Bitcoin): anchored in block 958808 (2026-07-20T02:49:15Z), 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/BEN581400187.
Back To Summertime (Cavego Extended Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34730bde6725caf5d38e2333db757469efec51372d97d52e7918f742ba5cd44c. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/BEN581700163.
Back To Summertime - Cavego After Dinner Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f3089f12efdb68a3f73dc80803443b3ce6be0ba817f5b38526f72f3c62279d7. Chain 2 (Bitcoin): anchored in block 958622 (2026-07-18T22:58:55Z), 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/BEN581700164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc023a3fbedd3b328ab5249d03025ed3e99479018d84a0f64f7334c53ce2d2b43. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/DEU672500864.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde74c30941d28d5956de614141ba54bbd82dbf3e23e3bf847c79b9b105a04808. Chain 2 (Bitcoin): anchored in block 958523 (2026-07-18T08:54:12Z), 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/DEU672500865.
Deep House Fever 02: The Finest Music Selection #Before #Party #After #Chill
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae10f013da17fa53f4b508efb353bdb38165bca8a228a115667fc64333d1f303. 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/BEN581300377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3e49582db09a86ac6b6a22f9aab064949961a08eb09054c5feca734aad65620. 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/GBFBC1401187.