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 0x467f0bbed2ffd93e5cdb5a9312b3e54cc9aad53d74ca562881267b5af8ba64fe. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/4dfbfd96-cee8-4f11-965b-4367af800701.json and https://artists.proofprofile.net/proofs/artist/4dfbfd96-cee8-4f11-965b-4367af800701.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Dos Amigos (with Gilberto Santa Rosa) - Bachata Version
{"copyright_id":"0x77e5132e7f7824b3e7cabe5dcacaeff17d79170ea588ca95212b1f7b5e6543bb","isrc":"USUM71517682","name":"Baby - Chris Jedi / Supa Dups Remix","registered_at":"2026-06-05T17:13:34Z","spotify_id":"14Nqot3iOUgUKEHj6WZOMv","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 0x77e5132e7f7824b3e7cabe5dcacaeff17d79170ea588ca95212b1f7b5e6543bb. 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/14Nqot3iOUgUKEHj6WZOMv.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/14Nqot3iOUgUKEHj6WZOMv.
With Arms Wide Open (From “The Passion: New Orleans” Television Soundtrack)
With Arms Wide Open (Spanish Version/From “The Passion: New Orleans” Television Soundtrack)
With Arms Wide Open - Spanish Version / From “The Passion: New Orleans” Television Soundtrack
Pa Que Me Invitan - Cubaton Nando Pro Remix
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22f3cdb2256d6d1d9981120869401df7c6a318ff003501da6928538411adcd65. 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/199yJpWCdPhon2nlmLslJI.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/199yJpWCdPhon2nlmLslJI.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x583977a7edef7321f19adee9866a6a98c6f3acaa610c95553ce2ccbc7fece057. 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/2ZJI07zrQc0lT75kGX8M9T.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/2ZJI07zrQc0lT75kGX8M9T.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb1e7b7bc9c0c16fe22175c6a1c4c0d16ed8a82103c2a652a36066f3787296fd. 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/4j6HF4lA01EWzlZb3DAx2k.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/4j6HF4lA01EWzlZb3DAx2k.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1638d8fd49c06d3f873c889fa24fc5e363d19fc5fa4222d413ec618125d2eec. 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/0h8GiewuD4pRDn1dCUMk9T.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/0h8GiewuD4pRDn1dCUMk9T.
{"copyright_id":"0xc1638d8fd49c06d3f873c889fa24fc5e363d19fc5fa4222d413ec618125d2eec","isrc":"USNPW1000032","name":"Tu Cuerpo","registered_at":"2026-06-08T03:08:10Z","spotify_id":"5QqCTlzMOfEHVBnK7dlqIq","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1638d8fd49c06d3f873c889fa24fc5e363d19fc5fa4222d413ec618125d2eec. 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/5QqCTlzMOfEHVBnK7dlqIq.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/5QqCTlzMOfEHVBnK7dlqIq.
Somebody - Reggaeton Remix (Spanglish Version)
Somebody [Reggaeton Remix (Spanglish Version)]
{"copyright_id":"0x590d36d8bb71ec2b68b3bcbf97755c95c15302f707b63862cfc878732722150e","isrc":"USUM71516113","name":"Somebody - Reggaeton Remix (Spanglish Version)","registered_at":"2026-06-11T13:14:02Z","spotify_id":"5k8wFBrnKcdsBfLjSeaNaU","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x590d36d8bb71ec2b68b3bcbf97755c95c15302f707b63862cfc878732722150e. 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/5k8wFBrnKcdsBfLjSeaNaU.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/5k8wFBrnKcdsBfLjSeaNaU.
{"copyright_id":"0x77e5132e7f7824b3e7cabe5dcacaeff17d79170ea588ca95212b1f7b5e6543bb","isrc":"USUM71517682","name":"Baby - Chris Jedi / Supa Dups Remix","registered_at":"2026-06-05T17:13:34Z","spotify_id":"232d8Cx17hgJJ5VHVNKubG","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77e5132e7f7824b3e7cabe5dcacaeff17d79170ea588ca95212b1f7b5e6543bb. 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/232d8Cx17hgJJ5VHVNKubG.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/232d8Cx17hgJJ5VHVNKubG.
Ricardo Quijano and Julio Rodriguez-LAFAME