1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → block must exist at that height 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 0xb4816b99f3d96b93d62b5dd51529d3ee0bf69f413e43da25ce3dc6d3575331f0. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/295860a7-8f7a-4e26-bbbd-365d744f83bd.json and https://artists.proofprofile.net/proofs/artist/295860a7-8f7a-4e26-bbbd-365d744f83bd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xcbf9a908265cb0bc98a9106b30c1af3e5b31566b284b25f91f18c4e3124b62ea","isrc":"USUM71502647","name":"Dessert - Challenge Version","registered_at":"2026-06-01T12:03:45Z","spotify_id":"3mg29Lwvo673TkDhE3kB9W","type":"track"}
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. GET OTSBitcoinBlockVerifyURL → block OTSBitcoinBlock must exist at that height 3. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 4. GET OTSVerificationAPI → pre-computed 6-check result from server 5. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcbf9a908265cb0bc98a9106b30c1af3e5b31566b284b25f91f18c4e3124b62ea. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3mg29Lwvo673TkDhE3kB9W.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/3mg29Lwvo673TkDhE3kB9W.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d85ff87e50ec74ee197d5a15eacd42cc061cbf352e483c1e019196242819e86. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/14qcgoXg2WVn2UF0bBfS65.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/14qcgoXg2WVn2UF0bBfS65.
{"copyright_id":"0xbc54029e25e3b9922ecdf91ace9dba2869331cf7d58aed967e7ea23d0734ee5f","isrc":"USUM71407119","name":"Problem - Dawin Remix","registered_at":"2026-06-05T21:24:16Z","spotify_id":"0Ulu33I5L4zEg8VsrhsN8Z","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbc54029e25e3b9922ecdf91ace9dba2869331cf7d58aed967e7ea23d0734ee5f. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0Ulu33I5L4zEg8VsrhsN8Z.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0Ulu33I5L4zEg8VsrhsN8Z.
{"copyright_id":"0xd4416fea49632f44a719f62586f2a743ba399bd03ff0a599ea5bfc7b9766079b","isrc":"USUM71506803","name":"Somebody - Dawin Remix","registered_at":"2026-06-09T16:30:26Z","spotify_id":"48vWGYnguDmgWS6yU8DQLy","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4416fea49632f44a719f62586f2a743ba399bd03ff0a599ea5bfc7b9766079b. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/48vWGYnguDmgWS6yU8DQLy.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/48vWGYnguDmgWS6yU8DQLy.
Beyond the Lights (Original Motion Picture Soundtrack)
{"copyright_id":"0x6365f1fe3486f71b6ac651ae94d662dda7e0048df4dbd6548ea7b1ef93de39d6","isrc":"USUM71404400","name":"Just Girly Things","registered_at":"2026-06-06T12:03:14Z","spotify_id":"46fc2lqH8eDkmQH8YAHvIb","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6365f1fe3486f71b6ac651ae94d662dda7e0048df4dbd6548ea7b1ef93de39d6. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/46fc2lqH8eDkmQH8YAHvIb.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/46fc2lqH8eDkmQH8YAHvIb.
Life Of The Party - From "Jem And The Holograms" Soundtrack
Jem And The Holograms (Original Motion Picture Soundtrack)
{"copyright_id":"0xd91f7ea609801815fe40e1809ed510bf570fd8285d91e442a8bdea24dcf5fc65","isrc":"USUM71514523","name":"Life Of The Party - From \"Jem And The Holograms\" Soundtrack","registered_at":"2026-06-21T22:32:24Z","spotify_id":"0jXh4Tj55V1pB3VF7tRgjY","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd91f7ea609801815fe40e1809ed510bf570fd8285d91e442a8bdea24dcf5fc65. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0jXh4Tj55V1pB3VF7tRgjY.json contains the same CopyrightID — hash it and compare to OTSHash, then confirm the Bitcoin block independently via OTSBitcoinBlockVerifyURL or https://artists.proofprofile.net/api/v1/bot/ots/verify/track/0jXh4Tj55V1pB3VF7tRgjY.