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 0xc69bb174a205c2a711a05109ec1e81abc73b2ed1674e7a5e8f588eb02004827e. 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/722b0b03-7194-4105-9908-f32cf0192e08.json and https://artists.proofprofile.net/proofs/artist/722b0b03-7194-4105-9908-f32cf0192e08.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0xfa52111da31986b9dca9da4f494e3bf187be01ddcd5b0f666fbc7aa069900b43","isrc":"QZHNB1972420","name":"In the News","registered_at":"2026-06-28T19:29:38Z","spotify_id":"09BHpc89KP7gV0HlAKfwuY","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 0xfa52111da31986b9dca9da4f494e3bf187be01ddcd5b0f666fbc7aa069900b43. 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/09BHpc89KP7gV0HlAKfwuY.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/09BHpc89KP7gV0HlAKfwuY.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d36c2bb6abbb1e2b576079e5ca23280e83cef9d5c196cb5c855165247545960. 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/43xYiL7rx7re5tYnTKyV3X.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/43xYiL7rx7re5tYnTKyV3X.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad89100def14ebee728f6cea311f788fd326e237ed4c69ccff28aed03803faaa. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1WrT5EJnhRr8qme0VSTC6t.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/1WrT5EJnhRr8qme0VSTC6t.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x05a6385db02cbfcb26ec2d5121466056c745916cfb3b8ae35b9a3d3cafb3b3cc. 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/03mm4nDQvrTqhKgDBLQxOq.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/03mm4nDQvrTqhKgDBLQxOq.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d527be904e146c20a539ea81473de0eff4beb074cf86541b0f0ea16b3d0f603. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6crhCbd8dZb18OzMxngr53.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/6crhCbd8dZb18OzMxngr53.
{"copyright_id":"0xe4fc74ab451f6b3d9f8599ff5a3fcc48547d5d80e29a58c74ea11cb58cf05f63","isrc":"QZ4JJ1735931","name":"Airwolf Theme","registered_at":"2026-06-10T22:56:52Z","spotify_id":"0xYyxaJxZP22dPvFZv7ptm","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4fc74ab451f6b3d9f8599ff5a3fcc48547d5d80e29a58c74ea11cb58cf05f63. 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/0xYyxaJxZP22dPvFZv7ptm.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/0xYyxaJxZP22dPvFZv7ptm.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2ac5748f61ad087c9094543ac2d0b58f41113fa7bb565f18bdd78fe45f2505d0. 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/3dAUz8qeUL6pKf6gp6iemq.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/3dAUz8qeUL6pKf6gp6iemq.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x322fa1a8aeb7634093727a1ef26cdcac465d8064b683e97210e2713c31272dc1. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/6t08fyZT7u1BZ1UrkuhCes.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/6t08fyZT7u1BZ1UrkuhCes.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x751236a5b5ef2827b74b3272713592aa7334f49d9daefa99429369f4e0918727. 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/4UAfm6811XPwFzt1oaSpRF.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/4UAfm6811XPwFzt1oaSpRF.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa0b7b979ab40331f4f009767bc58028f3c0edb089887bd0b0257c22b481fad72. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1yrlyLFjFh4NKSZGrK1fxK.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/1yrlyLFjFh4NKSZGrK1fxK.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74e2b2d66f26f851a644024b48422e988cf733ef0e1673f4a1a2e1ea571ca04b. 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/48eJXpUf08M5psKHQUcHQB.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/48eJXpUf08M5psKHQUcHQB.
{"copyright_id":"0xf5cb5bba8915b9c3adbe06c408c17cecd6366fac31d17ac8a8412b8c052c4d41","isrc":"QZ4JJ1735950","name":"Street Hawk Redux","registered_at":"2026-06-23T06:49:46Z","spotify_id":"3pou7QSVFYlKMG2bwUToen","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5cb5bba8915b9c3adbe06c408c17cecd6366fac31d17ac8a8412b8c052c4d41. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/3pou7QSVFYlKMG2bwUToen.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/3pou7QSVFYlKMG2bwUToen.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79a5b2140f08cff37e401be3e13c7734e9b906a3e14fea84667b1601424b70d8. 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/3TOY3TQNcJlTlkcNw6Ud22.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/3TOY3TQNcJlTlkcNw6Ud22.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc2553ccbd1349d9fcd2351b4594c35f804f2a5b6297a3c6e80d2638cae795c8e. 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/3ZG27jSINjoGmhFzgj7D9K.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/3ZG27jSINjoGmhFzgj7D9K.
{"copyright_id":"0xf1adc27080448909cf04bf78379279ff4e32008c95dba65ecd48af49026c94ed","isrc":"QZ4JJ1735953","name":"Green Hill Zone Theme","registered_at":"2026-06-25T01:16:10Z","spotify_id":"1qaEiWlXrhY4IrzoeVFIiq","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1adc27080448909cf04bf78379279ff4e32008c95dba65ecd48af49026c94ed. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1qaEiWlXrhY4IrzoeVFIiq.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/1qaEiWlXrhY4IrzoeVFIiq.
Megamagic: Wizards of the Neon Age (Original Soundtrack)
Impact Winter (Original Game Soundtrack)
Trackmania NEO-CUPRA: District 2 // Intricacy (Original Game Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x02ca46627b94717d396c26493cc03bf5f082e191a839c83f6e68a7192f11b997. 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/16QdwYyhiIG9qf5jIoI14i.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/16QdwYyhiIG9qf5jIoI14i.
{"copyright_id":"0x32a3f13ce7e5e3ca0fbede49b72ab03846f326a925b36e430fd801a539236da5","isrc":"CAP431301012","name":"All My Life - Mitch Murder Remix","registered_at":"2026-06-27T02:39:27Z","spotify_id":"1ZlY1DU25Jm4tdCyH3HDxn","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32a3f13ce7e5e3ca0fbede49b72ab03846f326a925b36e430fd801a539236da5. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/1ZlY1DU25Jm4tdCyH3HDxn.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/1ZlY1DU25Jm4tdCyH3HDxn.