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 0xd24c14efa7f04393d34ec0f4fade866439b13dba594a516b27bb67461ccb459d. 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/cd66afff-3a00-4a73-9755-8c52fda218be.json and https://artists.proofprofile.net/proofs/artist/cd66afff-3a00-4a73-9755-8c52fda218be.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Hardcore Happiness - Melody's Enemy Remix
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 0xb0da74d2e81c9f963099346a7c385c90f1ae3c737b549719226f113d357ab37e. 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/6y8PyFH9hVGvrFEQR5VmE5.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/6y8PyFH9hVGvrFEQR5VmE5.
{"copyright_id":"0xccc60bb1e816d0eb9d4277a8340f0edb8c1bebbcb26365e5f59c39110c3e6947","isrc":"GBJX32366852","name":"We Show Up","registered_at":"2026-06-07T04:03:11Z","spotify_id":"6KAxYgz1gNUPver8hC5Fkw","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xccc60bb1e816d0eb9d4277a8340f0edb8c1bebbcb26365e5f59c39110c3e6947. 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/6KAxYgz1gNUPver8hC5Fkw.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/6KAxYgz1gNUPver8hC5Fkw.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x418724711b7ced44e3392477a2656f3108d0f8398f32979062834fde6ba55fd9. 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/5527cAFwKGI9vjs7uEI7Bo.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/5527cAFwKGI9vjs7uEI7Bo.
Rebirth (Blackworks Weekend Festival 2025 Official Anthem)
{"copyright_id":"0x79ee62bdde05c1d5f645a7163291711144c5cd6d98d9a23a4aa8da5add454ceb","isrc":"NLCK42408324","name":"Anti Techno Techno club","registered_at":"2026-06-07T08:16:40Z","spotify_id":"4kr4LimDL39OZEd7Hz57p5","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79ee62bdde05c1d5f645a7163291711144c5cd6d98d9a23a4aa8da5add454ceb. 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/4kr4LimDL39OZEd7Hz57p5.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/4kr4LimDL39OZEd7Hz57p5.
WIJ ZIJN TEGENDRAADS - TEGENDRAADS Indoor 2024 Anthem
WIJ ZIJN TEGENDRAADS (TEGENDRAADS Indoor 2024 Anthem)
{"copyright_id":"0x339434ea671bf9822ed74413fc9bda861460c6f443b781b01017668bf67f336a","isrc":"BEB682400051","name":"WIJ ZIJN TEGENDRAADS - TEGENDRAADS Indoor 2024 Anthem","registered_at":"2026-06-19T18:56:09Z","spotify_id":"4jeOJEvHcWi7evfkviUyC3","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x339434ea671bf9822ed74413fc9bda861460c6f443b781b01017668bf67f336a. 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/4jeOJEvHcWi7evfkviUyC3.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/4jeOJEvHcWi7evfkviUyC3.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f135cd20149914f11056ac25f1bdfb514928a4b04850bc2e49a3419ca3e7e0d. 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/0AdZea91wVCpeAT1NA5YPF.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/0AdZea91wVCpeAT1NA5YPF.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x418724711b7ced44e3392477a2656f3108d0f8398f32979062834fde6ba55fd9. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/2gqrxFhlHZBLvmMaZSAYTm.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/2gqrxFhlHZBLvmMaZSAYTm.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75b3b4df8d25e409f2fb1aeb46bbd2779c734cf9a2b411565cc5e46649b02622. 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/7vXcRq7GsYw4jtcuvqD0JD.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/7vXcRq7GsYw4jtcuvqD0JD.
{"copyright_id":"0x62a0dc2d063a6d46755b77d68e14a64b4177145f3c37f1d4fb5e8bb063d61d90","isrc":"GBJX32166004","name":"Space Raiders - Luciid Remix","registered_at":"2026-06-27T19:29:32Z","spotify_id":"6EEM6rt6tLVVPEeKhRFYM2","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62a0dc2d063a6d46755b77d68e14a64b4177145f3c37f1d4fb5e8bb063d61d90. 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/6EEM6rt6tLVVPEeKhRFYM2.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/6EEM6rt6tLVVPEeKhRFYM2.