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 0x886564dc22c54b4fcb9d7ac671737adb34ed45f1d80c325bcd53096997c9c579. 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/b4c7ab9e-a5d3-407a-82c3-deeb1c5d0996.json and https://artists.proofprofile.net/proofs/artist/b4c7ab9e-a5d3-407a-82c3-deeb1c5d0996.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Love Theme From "Romeo And Juliet" (Arr. C. Dragon)
The Greatest Orchestral Movie Soundtracks
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 0x2d8ad5c1f3df2569bd57b1178fab8e35b76c30ca2d97ae90afb187c39e22d0d8. 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/USTE10308168.
Piano Concerto No. 21 in C Major, K. 467: II. Andante (From "Elvira Madigan")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51069f93861a29808550730edcd50656c532e46d77e736298abbd2ea4a055411. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-21T21:26:14Z), 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/USTE10412221.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2d8ad5c1f3df2569bd57b1178fab8e35b76c30ca2d97ae90afb187c39e22d0d8. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/USTE10308168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb37fb6e3d09b0bd51f1e1b6eaccf7c695f93e4ddae15edd8dfa0b3cf79dc5cce. 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/USTE10310168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc085fe1397cda48f75a5ac16618ebc168adb911933626c7e0ede1b26724bc9d. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/USTE10315168.
We're Losing Him (From "Somewhere In Time")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde7a5a12df51b2ec1e1a05655165a6c30d0b35e283219f91aee0f8575adf863b. 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/USTE10304243.
Rhapsody on a Theme of Paganini, Op. 43: Var. 18, Andante cantabile (From "Somewhere in Time")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60ac29d7520cab1f7d9bafd122d3c9842c99c0239d4424a61cf9b07f098bfec9. Chain 2 (Bitcoin): anchored in block 960317 (2026-07-30T21:35:24Z), 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/USTE10407221.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Theme From "Chariots Of Fire" (Arr. D. Rose)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc235e88011af6bdfbff538b197d532fe94672297be5161beb5159912c02ac151. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/USTE10317168.