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 0x397c2b9535ac47cf756ebd7d8f268b201da0efb793ac80d347aaf9d655a6c0ee. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/96bfbe24-29aa-4704-acc0-21c9cfced4ef.json and https://artists.proofprofile.net/proofs/artist/96bfbe24-29aa-4704-acc0-21c9cfced4ef.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Sound Therapy (Bus Ride Sound) (Sound for Sleep)
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 0x0b9740da572a16fc0dd5998f63b5233d0abbbc96002fc4b1342c1d05366ea026. 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/PL44R2223539.
Positive Transformation (Bus Ride Sound) (Sound for Sleep)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7f18ebe4d3bfa161c4a2e16482dbcfc5326f60f2e4619bdcf9015f6de76f4cc. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T18:40:51Z), 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/PL44R2223541.
Positive Energy (Bus Ride Sound) (Sound for Sleep)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32e6cba6472b8206f1343294d4818466074f9c716f276691f6a2d1fddf001e92. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T18:49:24Z), 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/PL44R2223542.
Stress Reduction (Bus Ride Sound) (Sound for Sleep)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf617064c4241b9026b126ce94833b162a5d5180e7c640625fe8985225a50b03a. 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/PL44R2223543.
Calming Lullaby (Bus Ride Sound) (Sound for Sleep)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xac88c934e2ad0ded029cbb773afde2248088dfcdb47bcf237d15aa497f9d83bd. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/PL44R2223544.
Beauty Sleep (Bus Ride Sound) (Sound for Sleep)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xec0225e694f06b5e51ef6e2cdf60bac609ff6aaf92528099a7f5bf7eca23c6cb. Chain 2 (Bitcoin): anchored in block 958355 (2026-07-17T03:11:50Z), 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/PL44R2223545.
Relief (Bus Ride Sound) (Sound for Sleep)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x057bc477505f1fc97d3e010a5b7cae608bbae4762d3e43c3b0252600940a6811. Chain 2 (Bitcoin): anchored in block 958991 (2026-07-21T11:26:04Z), 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/PL44R2223549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9df54d2ad51a15a34008b4791ee3214bbd573efd79d385d0c77215010e2e74f. Chain 2 (Bitcoin): anchored in block 958985 (2026-07-21T08:39:15Z), 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/PL44R2223550.
Mindfulness (Bus Ride Sound) (Sound for Sleep)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91ea69862d42ced159f871e6c099046f5aefea89dd9339c89a3064e121b6e743. Chain 2 (Bitcoin): anchored in block 958947 (2026-07-21T03:30:03Z), 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/PL44R2223553.