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 0x6c0d9ae338d8ca9efd394bf54b2769092b1f3791367882367e5d10711f8fbec5. Chain 2 (Bitcoin): anchored in block 954593 (2026-06-20T19:46:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/be3e2290-6e8b-439e-8b09-93b707c877f8.json and https://artists.proofprofile.net/proofs/artist/be3e2290-6e8b-439e-8b09-93b707c877f8.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 0xfe8b911aae4fe94a3765c6321620d6ce3d9b8790e8ef574d716f656ad28c1efd. 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/DEAT71106192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5071291a50adf37e805291b11384637e4e029aee4e2669193aae23932b131ab3. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/DEAT71003895.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b45b35ff15dfa4ca5ff85327cd685c88deb824a0b90f6242fdce9217b515357. 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/DEAT71106194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd7700559960804d1e1da016fb19c7ef9fcaaf5bebb2458904d205afa3ada439. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DEAT71003897.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e1352bc716793d5824b86ba5cf54ae7663acaf375bfa2e38f367f0e55b14166. 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/DEAT71105441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc5b7631f824a38ea2883062acecf28401172285bc7f2705093afa2926177dc84. 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/DES561692201.
Electronic Saviors - Industrial Music To Cure Cancer, Vol VI: Reflection
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a9878a433c0e3f4366adabfafcb88149734210432dcccc99535279eda651baa. 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/US57M2021640.
Lower Than This (Someday) - Daniel Myer Cut Short Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1165589576dc7f1bb395136562276500fddedf67f17b2e241cd4dd9f158628c6. 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/SEVZP1700202.