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 0xbc9b20f376681f6df11ae819228ba0148f45ca9eb1116bd8917cddebede2815d. 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/38c7875c-4c3e-426f-9a94-7e8f03c653a5.json and https://artists.proofprofile.net/proofs/artist/38c7875c-4c3e-426f-9a94-7e8f03c653a5.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
{"copyright_id":"0x274ad475126503e2698445c0ec56918fd72bec7a9a8bb5f693ba0cd6d74d5de8","isrc":"BRPGD9600237","name":"Bagaço Da Laranja - Ao Vivo","registered_at":"2026-06-04T07:51:19Z","spotify_id":"3nMKAinv6HXPnWZNF5GVbA","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 0x274ad475126503e2698445c0ec56918fd72bec7a9a8bb5f693ba0cd6d74d5de8. 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/3nMKAinv6HXPnWZNF5GVbA.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/3nMKAinv6HXPnWZNF5GVbA.
Pure Brazil II - Samba Social Club (The Ladies Session)
{"copyright_id":"0xacb78e7f1ec837fcdef3c8a02c7145481315571422e014a53e1834acdb2838b4","isrc":"BRSGL9300127","name":"Feirinha Da Pavuna","registered_at":"2026-06-05T21:37:39Z","spotify_id":"1WVwzE16WxGYVydJSUhWq6","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacb78e7f1ec837fcdef3c8a02c7145481315571422e014a53e1834acdb2838b4. 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/1WVwzE16WxGYVydJSUhWq6.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/1WVwzE16WxGYVydJSUhWq6.
{"copyright_id":"0x274ad475126503e2698445c0ec56918fd72bec7a9a8bb5f693ba0cd6d74d5de8","isrc":"BRPGD9600237","name":"Bagaço Da Laranja - Ao Vivo","registered_at":"2026-06-04T07:51:19Z","spotify_id":"0Urt7qiCvbK3MXTGWhN0SE","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x274ad475126503e2698445c0ec56918fd72bec7a9a8bb5f693ba0cd6d74d5de8. 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/0Urt7qiCvbK3MXTGWhN0SE.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/0Urt7qiCvbK3MXTGWhN0SE.
{"copyright_id":"0x274ad475126503e2698445c0ec56918fd72bec7a9a8bb5f693ba0cd6d74d5de8","isrc":"BRPGD9600237","name":"Bagaço Da Laranja - Ao Vivo","registered_at":"2026-06-04T07:51:19Z","spotify_id":"2XO2ZrMPfZjCKsefz01rIy","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x274ad475126503e2698445c0ec56918fd72bec7a9a8bb5f693ba0cd6d74d5de8. 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/2XO2ZrMPfZjCKsefz01rIy.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/2XO2ZrMPfZjCKsefz01rIy.
{"copyright_id":"0x2e26676ab2e528f096c9ecb2ce1b044686ae0e86551f5c4809fc88c61545f962","isrc":"BRESM9800019","name":"O Show Tem Que Continuar - Ao Vivo","registered_at":"2026-06-08T17:53:20Z","spotify_id":"4sj1NwQAEa0G6aVKcOThPe","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e26676ab2e528f096c9ecb2ce1b044686ae0e86551f5c4809fc88c61545f962. 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/4sj1NwQAEa0G6aVKcOThPe.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/4sj1NwQAEa0G6aVKcOThPe.
{"copyright_id":"0x2e26676ab2e528f096c9ecb2ce1b044686ae0e86551f5c4809fc88c61545f962","isrc":"BRESM9800019","name":"O show tem que continuar - Ao vivo","registered_at":"2026-06-08T17:53:20Z","spotify_id":"6tzNmOqBcKrquEbBRBguzW","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e26676ab2e528f096c9ecb2ce1b044686ae0e86551f5c4809fc88c61545f962. 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/6tzNmOqBcKrquEbBRBguzW.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/6tzNmOqBcKrquEbBRBguzW.
Pot-Pourri: Pedra No Caminho/ Bagaço da Laranja