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 0x174fc25fb9443461f69849a96488f4e1c98775749a74efd4a906af2d7e8e935a. 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/986974e8-18c0-4398-9ff1-a2aa5cb9bab0.json and https://artists.proofprofile.net/proofs/artist/986974e8-18c0-4398-9ff1-a2aa5cb9bab0.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 0xd096dbe1b7a04df886965efd1977569503a7e129768e7eed0e9b7d5205291d57. 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/5yoxVhbOAFeloM9J36Am5k.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/5yoxVhbOAFeloM9J36Am5k.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x061f50343d8f3662999f3770507a4e7b1d321c53332a53df3b5f0da1a09447aa. 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/1buQe1bltPhPwfUN2wa8PJ.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/1buQe1bltPhPwfUN2wa8PJ.
{"copyright_id":"0x47202d8fb2aa870450354decf395de6ca0fb8aabaa358fd8a8c36f7d70f73b8d","isrc":"MXF152401536","name":"Se Rumora (feat. Alu Mix)","registered_at":"2026-06-06T12:41:38Z","spotify_id":"43YcBCml7HyoHE0iiaJDlo","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47202d8fb2aa870450354decf395de6ca0fb8aabaa358fd8a8c36f7d70f73b8d. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/43YcBCml7HyoHE0iiaJDlo.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/43YcBCml7HyoHE0iiaJDlo.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3f0fb3eedcc7537b57815ced0d6eeb661a9cd5a192cadc17a2a814df3ae75d19. 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/3isFvXfiFxBXxfeU0lwocW.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/3isFvXfiFxBXxfeU0lwocW.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4af94f0631aa7314acb47f4f14bb19de5d2e5fad5135d90c3fbb6e060d502e17. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/0nWkcSvGz2ksrb3xWp6F0F.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/0nWkcSvGz2ksrb3xWp6F0F.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50b8906758b47f6feca012edeb78cf088719e07eb4165f7d7804c2905b08c87b. 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/6hOobkF1g225JzfeMc3BQl.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/6hOobkF1g225JzfeMc3BQl.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x156df6cb457122bc3c2bd5f94cb29cc7588b1656f303c61d362e55b6448629ea. 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/0grteowwxnAABiJ1lHMykm.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/0grteowwxnAABiJ1lHMykm.
Te Lo Advertí (with Reykon, Rafa Pabön, Gaviria)
{"copyright_id":"0x0fe6df09a7346bc6f8ba159731de866ebfe9e41f8909bac9be08caef15756ffc","isrc":"ITF252000041","name":"Te Lo Advertí (with Reykon, Rafa Pabön, Gaviria)","registered_at":"2026-06-20T10:23:42Z","spotify_id":"4QnTGcOlftovUqMzpqwcYo","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fe6df09a7346bc6f8ba159731de866ebfe9e41f8909bac9be08caef15756ffc. 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/4QnTGcOlftovUqMzpqwcYo.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/4QnTGcOlftovUqMzpqwcYo.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x43f96d373be623fb1faa6b086706882131eb63e039c99456e4d3c6a199f09dc0. 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/3ATyzEIDYlMn9SlsPbt5vZ.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/3ATyzEIDYlMn9SlsPbt5vZ.
{"copyright_id":"0x554aea7ea982276f5c9cb3b3ba7d917d4c273b988d807c4b13f902c54b5b5d19","isrc":"USDXS1704070","name":"Felicidad (feat. Gaviria)","registered_at":"2026-06-25T12:38:51Z","spotify_id":"2w98p0xFnuVHMQiSl2dsjP","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x554aea7ea982276f5c9cb3b3ba7d917d4c273b988d807c4b13f902c54b5b5d19. 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/2w98p0xFnuVHMQiSl2dsjP.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/2w98p0xFnuVHMQiSl2dsjP.
Ojos Rojos (feat. Ronald El Killa, Polako, Gaviria, Sir Speedy & Kartel Montana)
{"copyright_id":"0xe0c875fce6acc6cbe14c3ec81b2026f026e2ab70a29647c01a9f2e9dfcc84d78","isrc":"TCADI1763662","name":"Ojos Rojos (feat. Ronald El Killa, Polako, Gaviria, Sir Speedy & Kartel Montana)","registered_at":"2026-06-22T06:07:40Z","spotify_id":"2KCydD7ipaLpqcgFWs0az1","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0c875fce6acc6cbe14c3ec81b2026f026e2ab70a29647c01a9f2e9dfcc84d78. 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/2KCydD7ipaLpqcgFWs0az1.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/2KCydD7ipaLpqcgFWs0az1.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e06bb204b644b4b661bc412987a5e42482891933fc6b3807d977d27d5b35b9e. 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/6tPxvQXbhjFRM04UagGHmQ.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/6tPxvQXbhjFRM04UagGHmQ.
Vicio Cabron (feat. Lito Kirino & Messiah)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd096dbe1b7a04df886965efd1977569503a7e129768e7eed0e9b7d5205291d57. 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/5Vi1N9U3IeUUOpZBuJOta2.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/5Vi1N9U3IeUUOpZBuJOta2.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfc142e0f6001dc2a02262a005b4e8bd74138de53fe51320e520463466600fb0. 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/6fyFxn3epgVUKmGiZNUZlz.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/6fyFxn3epgVUKmGiZNUZlz.