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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea5a55c83ec73dfe87b7a82687fda4c363cff8e647d4b5b6ad0e8cb7ead61b32. 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/c070fc26-eeb1-4739-aef9-7d0c839a7456.json and https://artists.proofprofile.net/proofs/artist/c070fc26-eeb1-4739-aef9-7d0c839a7456.ots, the client at https://opentimestamps.org runs `ots verify -f record.json proof.ots`.
Commercial Beats - Songs From TV Adverts
Sound Familiar? - Songs From The Adverts
Music from the Movies: The Blues Brothers & The Commitments
Truly Scrumptious (From 'Chitty Chitty Bang Bang')
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x813af317c132aade18620d7be7ec785a058e348bbf826b2858dc19bf2ea33972. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBQRF1109159 — a six-check JSON result.
Music from Close Encounters of the Third Kind, Men in Black 1 & 2 and Twilight Zone: The Movie
Chitty Chitty Bang Bang: Childrens Favourite Film Themes
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c98c922bc64583442c9748f571c34cd22fd2e81b015cb2326e81f6466ef2f91. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBQRF1035918 — a six-check JSON result.
Music from Valentines Day & New Year's Eve
Everybody's Free (To Feel Good) [From "Romeo + Juliet"]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc394d12d68833d78a982fd801ce2aa68f5d6f61bcfa908596842b520d85183b1. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBQRF0806338 — a six-check JSON result.
Everybody's Free (To Wear Sunscreen) [From "Romeo + Juliet"]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x631304e0b62f471a3bac3495091256d35aef71b78ec6e76e82dbfe342c3d1eb6. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBQRF1229645 — a six-check JSON result.
Music from Friends with Benefits & No Strings Attached
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b49b9f368c70fcef3659ca29081f4c173fd378ab65a3609c0f48c1d9388ffd0. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBQRF0814073 — a six-check JSON result.
99 Problems (From "No Strings Attached")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x225c6f2afbfe1e3481ef55543268ec9b49266a96598711f1e49b003f4ccde3e0. Chain 2 (Bitcoin): anchored in block 956402 (2026-07-02T22:05:07Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBQRF1205661 — a six-check JSON result.
Music from Magic Mike, Just Can't Get Enough & The Full Monty
Music from Megamind & Monsters vs Aliens
Music from Zookeeper & Night at the Museum
Music from Hannah Montana: The Movie & The Lizzie Mcguire Movie
Crazier (From "Hannah Montana: The Movie")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3fd66ce5e46b5bf79cfecc6b58b02fcf4c1f466585540313a147fd7c27ab773. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBQRF1101461 — a six-check JSON result.
The Tide Is High (From "The Lizzie Mcguire Movie")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x819abeafbafac1abc4db30e1d646e095901d2ca8c0923838f8f2ad32df280653. Chain 2 (Bitcoin): anchored in block 959114 (2026-07-22T08:41:42Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBQRF1306468 — a six-check JSON result.
What Dreams Are Made Of (From "The Lizzie Mcguire Movie")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x04ccf76b93cf1913f0e547055417f08bc8799c6e1e65d4edc5923d9c88c5c4bb. Chain 2 (Bitcoin): anchored in block 958074 (2026-07-14T22:45:25Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBQRF1101586 — a six-check JSON result.
Music from Camp Rock & Camp Rock 2: The Final Jam
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66856e035fd07e6d6bf8c2fb10c5867f62405d77504cbb893f9421f47ea2b383. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBQRF0836149 — a six-check JSON result.
Music from Alvin and the Chipmunks 1, 2 & 3
Music from Bugsy Malone, West Side Story & Grease
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75d35643cf238f0a1c6c028b5054a4e402366fbb592094b7ce3fea0b31516ac9. Chain 2 (Bitcoin): anchored in block 958600 (2026-07-18T19:24:05Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBQRF1312821 — a six-check JSON result.
Fat Sam's Grand Slam (From "Bugsy Malone")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc100a5e4504d81fb68e8c369db9b94189bc527a18ccadff43f7d2e89158b621. Chain 2 (Bitcoin): anchored in block 958980 (2026-07-21T07:04:12Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBQRF1312820 — a six-check JSON result.
So You Wanna Be a Boxer (From "Bugsy Malone")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa88c82083f5de343ed1f4055ab2a438c82f21a995c07c1f6d8f0f3e1845e50cf. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T19:27:18Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBQRF1312824 — a six-check JSON result.
You Give a Little Love (From "Bugsy Malone")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeaa85524a824e4d3fa52a659760ccaa2aca8f918d3a98295da5d72816823fc2d. Chain 2 (Bitcoin): anchored in block 958771 (2026-07-19T19:27:18Z), 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 at https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBQRF1312823 — a six-check JSON result.
Music from Cameron Diaz Movies Including Shrek, Charlies Angels & The Other Woman
Music from Channing Tatum Movies Including Magic Mike, Step Up & Foxcatcher
Music from Tom Hardy Movies Including Mad Max, Black Hawk Down & Layer Cake
Music from Jennifer Lawrence Movies Including Silver Linings Playbook, American Hustle & The Hunger Games
Music from Leonardo Dicaprio Movies Including Shutter Island, The Wolf of Wall Street and Catch Me If You Can
Music from Jennifer Aniston Movies Including, Bruce Almighty, Marley & Me and We're the Millers
Music from Matthew Mcconaughey Movies Including Magic Mike, Dallas Buyers Club & The Wedding Planner