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 0x5ab669bf4eee677a6739d2b31d66bd3cc5facde646a91fc2c348b25cd7396cb9. 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/0d63d833-8ac1-4ed2-9b34-cf41194b36a1.json and https://artists.proofprofile.net/proofs/artist/0d63d833-8ac1-4ed2-9b34-cf41194b36a1.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
John Adams (Music From The HBO Miniseries)
Merlin: Series Two (Original Television Soundtrack)
{"copyright_id":"0xbed165a47168c784badb04c9630cc1d4da7403e1c20cd6195aa4e945361fc846","isrc":"SEWVB0903111","name":"The Mark of the Raven","registered_at":"2026-06-28T19:09:35Z","spotify_id":"29FaD8v6ciPHKwYdhWObWs","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 0xbed165a47168c784badb04c9630cc1d4da7403e1c20cd6195aa4e945361fc846. 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/29FaD8v6ciPHKwYdhWObWs.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/29FaD8v6ciPHKwYdhWObWs.
Emma (Music from the BBC Television Series)
Merlin: Series Four (Original Television Soundtrack)
Merlin: Series Three (Music from the Original TV Series)
{"copyright_id":"0x24684cca4f3dfcb97dacc061bf1475d0e6ef47edd7ffff29e69266ddb51afcac","isrc":"SEWVB1202101","name":"Main Title - A Kingdom Under Threat","registered_at":"2026-06-29T09:06:18Z","spotify_id":"0zWSNTwiFjakHfDwlP81yn","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24684cca4f3dfcb97dacc061bf1475d0e6ef47edd7ffff29e69266ddb51afcac. 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/0zWSNTwiFjakHfDwlP81yn.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/0zWSNTwiFjakHfDwlP81yn.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1a0491cee8692de9c38497b1e118807108e82570f01acb1f49c472500fb6a558. 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/70wsuziVTV2owyp8ZUYPWH.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/70wsuziVTV2owyp8ZUYPWH.
Merlin: Series Three (Original Television Soundtrack)
Beowulf (Original Television Soundtrack)
Introducing Matthew Clairmont & Diana Bishop
Drive To Matthew's Home - The Congregation
{"copyright_id":"0x2935cc2e9c5e00dc7a855ca15ce4d16b6b8de6e7dcc25033443fdbf6f658b7d0","isrc":"UKNMP1800065","name":"Stalking Montage","registered_at":"2026-06-29T01:26:41Z","spotify_id":"4Z3NLcHoGLKexg1vshJUBz","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2935cc2e9c5e00dc7a855ca15ce4d16b6b8de6e7dcc25033443fdbf6f658b7d0. 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/4Z3NLcHoGLKexg1vshJUBz.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/4Z3NLcHoGLKexg1vshJUBz.
{"copyright_id":"0xe6b19adf3cf8c6026b90e1fce342eb11c08d0c2e3db5585e8fb53fded857c9ec","isrc":"UKNMP1800072","name":"First Kiss","registered_at":"2026-06-29T01:40:05Z","spotify_id":"4MQaacbt4eWE8Fi4ZuVCLj","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6b19adf3cf8c6026b90e1fce342eb11c08d0c2e3db5585e8fb53fded857c9ec. 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/4MQaacbt4eWE8Fi4ZuVCLj.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/4MQaacbt4eWE8Fi4ZuVCLj.
MotherFatherSon (Original Soundtrack Album)
A Discovery of Witches (Music from Series Two of the Television Series)
{"copyright_id":"0xc8ae49348facadf4571ad3e7a8b643cb15ef669edd85ca6b55f9f47c74efc865","isrc":"UKWJG2100020","name":"Opening Titles","registered_at":"2026-06-29T09:03:28Z","spotify_id":"2KXyUoT6TzExj5UiHKSyvc","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8ae49348facadf4571ad3e7a8b643cb15ef669edd85ca6b55f9f47c74efc865. 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/2KXyUoT6TzExj5UiHKSyvc.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/2KXyUoT6TzExj5UiHKSyvc.
A Discovery of Witches (Music from Series Three of the Television Series)
The Winter King (Original Series Soundtrack)