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 0x461ed22776913b63b090259066713a239a17b29e4b97b9deb49fd192b94c075b. 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/78c7fb76-3b0b-4a61-80f4-a41172578ef9.json and https://artists.proofprofile.net/proofs/artist/78c7fb76-3b0b-4a61-80f4-a41172578ef9.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
The Traitors (Original Music from the TV Series)
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 0xce1d6e7c974fa8086f2c1ac781dabfee148fcace9e310d7a5ea013ad2122e7fe. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/UKWYW2300002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc27b9411438990fd94f3c034e092493586574f4c89b0e3ea3340fab018d12128. 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/UKWYW2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b1154b1ab1830b44a41f0621ef737f87e671e6b2b12e58954d4609bd34e380a. 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/UKWYW2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d267be15a1aa2d6b133ff4a646841e2fc1c490e1ac4a36c3251ee0bcdd9f275. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/UKWYW2300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92cbee5b0d7b71eddf5fc6cd79931952a6ead6c0a1035e57b6f2157fa4ffc385. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/UKWYW2300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83216262194847c36e3c487f7833e953b96012f46773d35d5e2285f48b301857. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), 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/UKWYW2300015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08e78ea793f46c81d7c27967b076fb5eb2ebe55183c055f791e1518ea1a49f45. 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/UKWYW2300016.
Finger Food (Original Motion Picture Soundtrack)
Untethered (Original Motion Picture Soundtrack)