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 0xc14827fd15cddd746c8d1eeb19400326c1e583e3d7c24194063f3eef4a235d48. 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/32e199c2-82c4-4c11-9f70-19e057910f66.json and https://artists.proofprofile.net/proofs/artist/32e199c2-82c4-4c11-9f70-19e057910f66.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Salsa Fever (Selected by Yuri Buenaventura)
{"copyright_id":"0x9019e027da247ed4fca63d879d84f03ea09ad31710e48398fadebcf191e98f99","isrc":"FRZ051500634","name":"Les vieux amants","registered_at":"2026-06-29T06:19:43Z","spotify_id":"4pfRoJSEpRKlfxeRgDyTEd","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 0x9019e027da247ed4fca63d879d84f03ea09ad31710e48398fadebcf191e98f99. 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/4pfRoJSEpRKlfxeRgDyTEd.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/4pfRoJSEpRKlfxeRgDyTEd.
{"copyright_id":"0xcaaa75a8b0b0b77e336809d93c9425d89b0d4c96245207e00f5ec24bd6a370cb","isrc":"COCD11800002","name":"No estoy contigo","registered_at":"2026-06-29T06:18:02Z","spotify_id":"1JoKtN43e4zjcgzdiJokeq","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaaa75a8b0b0b77e336809d93c9425d89b0d4c96245207e00f5ec24bd6a370cb. 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/1JoKtN43e4zjcgzdiJokeq.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/1JoKtN43e4zjcgzdiJokeq.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f16f50c1528a1dc3bc3b4aa0132c1f337fbec6d55533ef75e129852e5f0e4a4. 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/2V7HSqgAM7XZWlB02hMojA.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/2V7HSqgAM7XZWlB02hMojA.
AMAME ( ACCOUSTIQUE ) - Acoustic version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88cc59c68d9b54a4f2f40a8569144fe7b588e06028eed2906fe6e47810baf966. 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/5Ev4Ha8Q4InDLhqYGLvy8q.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/5Ev4Ha8Q4InDLhqYGLvy8q.
TU Y YO ( ACCOUSTIQUE ) - Acoustic version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa95bb99447e0eae05f717064c06799c97240fddb129136eed1f0fd8c527f2006. 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/3nWgh4uAkMeTZhRbaI2qoC.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/3nWgh4uAkMeTZhRbaI2qoC.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b892ac3d89e453e0335abf2a38f08db7c8e7fd708629d7c830e74f078d97a70. 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/27dNiDU9FrizW5NbY8PVOk.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/27dNiDU9FrizW5NbY8PVOk.
100 Años de la Sonora Matancera (1924-2024)