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 0x0efc237dcb9b118115a498ca4a236a1bc72f8fcecd630998f3dc741e88923136. 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/fe3d2856-9f81-47f3-b67b-8fbcd449fc59.json and https://artists.proofprofile.net/proofs/artist/fe3d2856-9f81-47f3-b67b-8fbcd449fc59.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
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 0x10201aa4306c51180a1abf4b263e8b9e8f36a05f69d98318fdcde27275742e82. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7MMyAoYiqjwF2rfrpjraaQ.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/7MMyAoYiqjwF2rfrpjraaQ.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe439771bf22f854b61063bd1bd980292239fcbedb29f4b3016693632a103b459. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4qDAHVbyKoka9Ej2zkAhw0.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/4qDAHVbyKoka9Ej2zkAhw0.
{"copyright_id":"0x75d901d44dafae5c91b917a6bf83c57e5b498c89aacc95050f487c9881cf5b50","isrc":"USWD11995232","name":"Audrey's Christmas Rewind","registered_at":"2026-06-05T09:58:51Z","spotify_id":"41EBsCOnEjg6j9l72fFtRf","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75d901d44dafae5c91b917a6bf83c57e5b498c89aacc95050f487c9881cf5b50. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/41EBsCOnEjg6j9l72fFtRf.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/41EBsCOnEjg6j9l72fFtRf.
Queen of Mean (From "Descendants 3"/CLOUDxCITY Remix)
Queen of Mean - From "Descendants 3"/CLOUDxCITY Remix
{"copyright_id":"0xbd2e88ad472eb9193271f8ca798aabea1ba330c13078cb436d9489541371dbd5","isrc":"USWD11994825","name":"Queen of Mean - From \"Descendants 3\"/CLOUDxCITY Remix","registered_at":"2026-06-04T10:36:34Z","spotify_id":"4pqXKc9jDaeXNh9Iuo3E3E","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd2e88ad472eb9193271f8ca798aabea1ba330c13078cb436d9489541371dbd5. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4pqXKc9jDaeXNh9Iuo3E3E.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/4pqXKc9jDaeXNh9Iuo3E3E.
{"copyright_id":"0x75d901d44dafae5c91b917a6bf83c57e5b498c89aacc95050f487c9881cf5b50","isrc":"USWD11995232","name":"Audrey's Christmas Rewind","registered_at":"2026-06-05T09:58:51Z","spotify_id":"7AJQJaqE20CUBdV2yxxkh6","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75d901d44dafae5c91b917a6bf83c57e5b498c89aacc95050f487c9881cf5b50. 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/7AJQJaqE20CUBdV2yxxkh6.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/7AJQJaqE20CUBdV2yxxkh6.
Break This Down - From "Descendants 3"/Soundtrack Version
Descendants 3 (Original TV Movie Soundtrack)
{"copyright_id":"0x6839435d2f89bbd9d67b7fc5663acd88fca4d446fc8a31f6fe40fc798fdfdd6a","isrc":"USWD11993388","name":"Queen of Mean","registered_at":"2026-06-01T08:59:44Z","spotify_id":"4o05DiC0RQ9DNtGJGauwna","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6839435d2f89bbd9d67b7fc5663acd88fca4d446fc8a31f6fe40fc798fdfdd6a. 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/4o05DiC0RQ9DNtGJGauwna.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/4o05DiC0RQ9DNtGJGauwna.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbda819da110dae3a21031561d1a72fc20cf8712f0148c844546d3fc3f445b347. 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/1KB9t6oaVG99L1DIkMfyrx.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/1KB9t6oaVG99L1DIkMfyrx.
{"copyright_id":"0x70ec15beaf758b47aad4bb0ef578fb2acd183191877153f950cd4689bd52e812","isrc":"USWD11993396","name":"Rotten to the Core (D3 Remix)","registered_at":"2026-06-04T10:27:38Z","spotify_id":"35mP1AOFEpTrChN5H4r2u7","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70ec15beaf758b47aad4bb0ef578fb2acd183191877153f950cd4689bd52e812. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/35mP1AOFEpTrChN5H4r2u7.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/35mP1AOFEpTrChN5H4r2u7.
{"copyright_id":"0x675ff74a08c2fc9d12fe836dd5043f0258ff39d64cdca97dac640680443cea32","isrc":"USWD11993397","name":"Happy Birthday","registered_at":"2026-06-04T10:57:14Z","spotify_id":"0bNIhaDmxiDv1o7ufCayJb","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x675ff74a08c2fc9d12fe836dd5043f0258ff39d64cdca97dac640680443cea32. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0bNIhaDmxiDv1o7ufCayJb.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/0bNIhaDmxiDv1o7ufCayJb.
{"copyright_id":"0xbda819da110dae3a21031561d1a72fc20cf8712f0148c844546d3fc3f445b347","isrc":"USWD11993393","name":"Break This Down - From \"Descendants 3\"/Soundtrack Version","registered_at":"2026-06-01T17:46:12Z","spotify_id":"5vmaB7ytkC7FKdh78U0XnA","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbda819da110dae3a21031561d1a72fc20cf8712f0148c844546d3fc3f445b347. 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/5vmaB7ytkC7FKdh78U0XnA.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/5vmaB7ytkC7FKdh78U0XnA.
Rotten to the Core (D3 Remix) - From "Descendants 3"/Soundtrack Version
{"copyright_id":"0x70ec15beaf758b47aad4bb0ef578fb2acd183191877153f950cd4689bd52e812","isrc":"USWD11993396","name":"Rotten to the Core (D3 Remix) - From \"Descendants 3\"/Soundtrack Version","registered_at":"2026-06-04T10:27:38Z","spotify_id":"3nKoW2QWhghXZidGnDHoYO","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70ec15beaf758b47aad4bb0ef578fb2acd183191877153f950cd4689bd52e812. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3nKoW2QWhghXZidGnDHoYO.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/3nKoW2QWhghXZidGnDHoYO.
{"copyright_id":"0xbda819da110dae3a21031561d1a72fc20cf8712f0148c844546d3fc3f445b347","isrc":"USWD11993393","name":"Break This Down - From \"Descendants 3\"/Soundtrack Version","registered_at":"2026-06-01T17:46:12Z","spotify_id":"5mlowdGfAigT23QNEdZkaY","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbda819da110dae3a21031561d1a72fc20cf8712f0148c844546d3fc3f445b347. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/5mlowdGfAigT23QNEdZkaY.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/5mlowdGfAigT23QNEdZkaY.
{"copyright_id":"0x70ec15beaf758b47aad4bb0ef578fb2acd183191877153f950cd4689bd52e812","isrc":"USWD11993396","name":"Rotten to the Core (D3 Remix) - From \"Descendants 3\"/Soundtrack Version","registered_at":"2026-06-04T10:27:38Z","spotify_id":"3FaLQsEyjX9Mvxbs32BxzP","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70ec15beaf758b47aad4bb0ef578fb2acd183191877153f950cd4689bd52e812. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3FaLQsEyjX9Mvxbs32BxzP.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/3FaLQsEyjX9Mvxbs32BxzP.
{"copyright_id":"0xbda819da110dae3a21031561d1a72fc20cf8712f0148c844546d3fc3f445b347","isrc":"USWD11993393","name":"Break This Down - From \"Descendants 3\"/Soundtrack Version","registered_at":"2026-06-01T17:46:12Z","spotify_id":"7b0UVxcDuHR3jQU2lmt6BK","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbda819da110dae3a21031561d1a72fc20cf8712f0148c844546d3fc3f445b347. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7b0UVxcDuHR3jQU2lmt6BK.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/7b0UVxcDuHR3jQU2lmt6BK.
{"copyright_id":"0xbda819da110dae3a21031561d1a72fc20cf8712f0148c844546d3fc3f445b347","isrc":"USWD11993393","name":"Break This Down - From \"Descendants 3\"/Soundtrack Version","registered_at":"2026-06-01T17:46:12Z","spotify_id":"1xzE9ZNXBpcHWf72xGhKfZ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbda819da110dae3a21031561d1a72fc20cf8712f0148c844546d3fc3f445b347. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1xzE9ZNXBpcHWf72xGhKfZ.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/1xzE9ZNXBpcHWf72xGhKfZ.
{"copyright_id":"0x70ec15beaf758b47aad4bb0ef578fb2acd183191877153f950cd4689bd52e812","isrc":"USWD11993396","name":"Rotten to the Core (D3 Remix) - From \"Descendants 3\"/Soundtrack Version","registered_at":"2026-06-04T10:27:38Z","spotify_id":"4v5yxMaKOZHM8Y5m2dQlyT","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70ec15beaf758b47aad4bb0ef578fb2acd183191877153f950cd4689bd52e812. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/4v5yxMaKOZHM8Y5m2dQlyT.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/4v5yxMaKOZHM8Y5m2dQlyT.