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 0xa921e8c7d07bff080585f8978f3a709cfff07b61812c6dcfb163ccd9e5715b20. 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/f037bd11-e93f-475f-a25a-61b67ffb7de4.json and https://artists.proofprofile.net/proofs/artist/f037bd11-e93f-475f-a25a-61b67ffb7de4.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 0x0b99afcb85030229d9e92f96013e2887de543fdb39473649387716a34081c8ff. 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/5I66yA7MbwLNt9X3aM4DeO.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/5I66yA7MbwLNt9X3aM4DeO.
{"copyright_id":"0x16be4d82e4460df7003c83defd178945709069b4a878cb1ad8fe769b3d7ce18b","isrc":"QZ5AB1975989","name":"Chuva em Paris","registered_at":"2026-06-07T21:50:30Z","spotify_id":"4aSPxFXTZvjZcdos4dpyUe","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16be4d82e4460df7003c83defd178945709069b4a878cb1ad8fe769b3d7ce18b. 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/4aSPxFXTZvjZcdos4dpyUe.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/4aSPxFXTZvjZcdos4dpyUe.
{"copyright_id":"0xf8caef57e8c651bcbcb36accf43b81fd3ff87a24fd7a58d714f237ecc754a9a4","isrc":"BC0UE2100001","name":"Ai Amor","registered_at":"2026-06-18T20:42:39Z","spotify_id":"1t77HUsquahGXeALVyUi3H","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8caef57e8c651bcbcb36accf43b81fd3ff87a24fd7a58d714f237ecc754a9a4. 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/1t77HUsquahGXeALVyUi3H.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/1t77HUsquahGXeALVyUi3H.
{"copyright_id":"0xf7325181e64a2feae4f321dc7bf91adf1cc25c7daf3e7b7807de1370ba5532ee","isrc":"BCEOG2100002","name":"Não Sou de Me Apegar","registered_at":"2026-06-10T06:43:42Z","spotify_id":"2qqfnqk8H4c3fGN0riX7by","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7325181e64a2feae4f321dc7bf91adf1cc25c7daf3e7b7807de1370ba5532ee. 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/2qqfnqk8H4c3fGN0riX7by.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/2qqfnqk8H4c3fGN0riX7by.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x08048df1a57a3df70bd312fcf8f8d5d46e1be0472ecfb4b070a5d99277c14169. 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/0in8fSIbaiIaUP8rWuApso.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/0in8fSIbaiIaUP8rWuApso.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa29a57ed534e5b3160a4379abc7678695f81f446f52647098d017e582b26f3ed. 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/3K4ob6HwtPzya2X1uAi4vs.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/3K4ob6HwtPzya2X1uAi4vs.
Funk Universitário (Funk do Calaf) - Bregafunk Remix