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 0x9517697ea501673bcb43777b4f4340e6a1c44a7a4b154be2506cc9125eacfdf8. 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/a4e3167c-4d7b-4927-96ef-0ca98c84ddce.json and https://artists.proofprofile.net/proofs/artist/a4e3167c-4d7b-4927-96ef-0ca98c84ddce.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 0xa9f88244b9ddac917356e4f8cc78fefdccbbac7b0b51a23594867c9a65a1f929. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), registered by our registry partner. Bridge: the canonical record at https://artists.proofprofile.net/proofs/track/7E4DPodcGV8NMUx6w0h2Wo.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/7E4DPodcGV8NMUx6w0h2Wo.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9f88244b9ddac917356e4f8cc78fefdccbbac7b0b51a23594867c9a65a1f929. 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/1u3zVI8wN9Ahi4mncQeTA3.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/1u3zVI8wN9Ahi4mncQeTA3.
{"copyright_id":"0x10a67935e9682122943bc0ef7ea6af899bfba1f90a70a074982ff12bdf748e63","isrc":"DGA052406808","name":"Truc en commun","registered_at":"2026-06-27T03:26:26Z","spotify_id":"7GqTQXdgawPnftrgRoiJGs","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10a67935e9682122943bc0ef7ea6af899bfba1f90a70a074982ff12bdf748e63. 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/7GqTQXdgawPnftrgRoiJGs.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/7GqTQXdgawPnftrgRoiJGs.
Congo Na Musik (La playlist by Charlotte Kalala)
Latino Club Workout 2023 - Aerobic, Fitness & Fun
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e1fb633ce91ea500619dda03492b031fd9984cfb32f2cda0f0384cf274b89b7. 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/0xX55NB90iv1LGAosfkmqO.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/0xX55NB90iv1LGAosfkmqO.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74936df20fb676cc1338bff890f119d553e62339436b88b8000b4ab7459bd250. 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/3RVjxZDtYnznKPShHctovj.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/3RVjxZDtYnznKPShHctovj.
Sport Motivation 2023 - Die Hits Für Dein Workout
Techno Sounds 2023 - Underground Music Only
Club 2023: The Best in EDM, House & Dance
{"copyright_id":"0x7f0252785ecc3ad1b91c2d9b3b664182cc0ee87d8094b4eedae360d71db83a90","isrc":"FRD3G1900370","name":"Mwasi Ya Congo","registered_at":"2026-06-05T17:02:23Z","spotify_id":"4YtrllFpcXOkbYEAkXOIef","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7f0252785ecc3ad1b91c2d9b3b664182cc0ee87d8094b4eedae360d71db83a90. 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/4YtrllFpcXOkbYEAkXOIef.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/4YtrllFpcXOkbYEAkXOIef.