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 0x170063ec3a3df04c3e3d640d0778405a5f638eb8f1df1841b8aa87eb1b228c39. Chain 2 (Bitcoin): anchored in block 953770 (2026-06-15T09:50:11Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9ffb9f3b-3e69-422e-b17e-bf89551a5b22.json and https://artists.proofprofile.net/proofs/artist/9ffb9f3b-3e69-422e-b17e-bf89551a5b22.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 0x4d5de40317d213a43989fe61f57dc9bd4b48ae7a3900d3522c8a0d395f91626d. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BEZ459820702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x864bee283d0c45cab85f3222d423b9e720863a1ee082f7ef9aca2bbf86788ed2. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/BEZ450500724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x864bee283d0c45cab85f3222d423b9e720863a1ee082f7ef9aca2bbf86788ed2. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/BEZ450500724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4202607e9436f15b16cd3eb922a7c18c80d96feefbd64b5d017bcf3c3e944edd. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/BEZ450240717.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19cf2e2c3c53dd0cec45e9854a75db34f165afa0dcf3b1b0b2f9a38b3a946152. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), 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/BEZ450220717.
Unlovable (Nico Parisi featuring Loredana Remix)
Bonzai Trance Progressive - Retrospective 2001/2002
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4d5de40317d213a43989fe61f57dc9bd4b48ae7a3900d3522c8a0d395f91626d. 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/BEZ459820702.
Don't You Know - Antidote's Quadridote Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3612e95b7c9351a024de85ff4e89c02d03fb3a86bca795d7d1500bb0469c79f9. 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/BEY920410212.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc515f77ee12155eea673e6deaeb68795f4cbff8dacf8f385447393fc45c69579. 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/BEZ450600762.