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 0x2d236b366d90381c809ca8803aa974ea669f2db2e2d99bcb5da85d77ff5b1b17. 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/079ec235-07eb-499c-bda5-e1de186f715f.json and https://artists.proofprofile.net/proofs/artist/079ec235-07eb-499c-bda5-e1de186f715f.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Telecoteco (Um sambinha cheio de bossa…)
Ternura Antiga (In memory of Pascoal Perrota)
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 0xc6868cae842caa3e24a0b2533f71b96105a0ccc67a3d8c5b1d379b783e8244d7. 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/0o4QTeTBDX1BZPJvK0iVCw.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/0o4QTeTBDX1BZPJvK0iVCw.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b3e831367d60d7951235fe136ab536df8e29afc3522ca3a46444cc5053084ca. 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/7nZARKu6tzkTBkuCVXWaZa.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/7nZARKu6tzkTBkuCVXWaZa.
{"copyright_id":"0x9b0a58b16e688322fc37b15c2be4551a3c92a06effa43ebad183ba4380b054f0","isrc":"BRPUI1000276","name":"Flor de Maracujá","registered_at":"2026-06-20T17:06:47Z","spotify_id":"604oytd1VNeZcOe7ORrQzz","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b0a58b16e688322fc37b15c2be4551a3c92a06effa43ebad183ba4380b054f0. 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/604oytd1VNeZcOe7ORrQzz.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/604oytd1VNeZcOe7ORrQzz.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2e3df0a0f58a8d21b93c896625766e50fc76864ba25c52a8a349256944c65955. 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/2naZ7mZTdTxyZGTlQ4Y1Jr.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/2naZ7mZTdTxyZGTlQ4Y1Jr.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe71acfad937fa8ef2bff719175927a3ba336da3449cb3b586d17b1310493a07c. 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/2ugyP8JBoX9o1S833RF6p5.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/2ugyP8JBoX9o1S833RF6p5.
{"copyright_id":"0xb3bbb88ba090a45a8fd817bf07467167110d347e50dd3a21a73155d39155bdee","isrc":"BRPUI1000278","name":"Muito a Vontade","registered_at":"2026-06-24T00:43:48Z","spotify_id":"7Jd20kUDDADsqUiSRKbXf0","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb3bbb88ba090a45a8fd817bf07467167110d347e50dd3a21a73155d39155bdee. 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/7Jd20kUDDADsqUiSRKbXf0.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/7Jd20kUDDADsqUiSRKbXf0.
{"copyright_id":"0xaa4e9c1d5202314e90d1f4cd3b7ee620aeb85595f3f680d662f147e52b0a3875","isrc":"BRPUI1000279","name":"Lugar Comum","registered_at":"2026-06-28T02:31:28Z","spotify_id":"4ylRNQm8ZEqASmtikGDaRe","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa4e9c1d5202314e90d1f4cd3b7ee620aeb85595f3f680d662f147e52b0a3875. 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/4ylRNQm8ZEqASmtikGDaRe.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/4ylRNQm8ZEqASmtikGDaRe.
O Morro Nao Tem Vez - Bossarenova Trio Version
Serenata (Ständchen) After Schwanengesang, D. 957
Clara - A Flor da Idade After "Dichterliebe, Op. 48" Im wunderschönen Monat Mai
Eu e o Meu Amor / Lamento no Morro - Live
Paula Presents Jaques and CelloSam3a Trio - Live
{"copyright_id":"0x42532cea79fd7a9b1e4d2888a1a88696c06727a7cdf9bceebfc3cb0af9e1ce1a","isrc":"BRBMG0300275","name":"É Preciso Perdoar","registered_at":"2026-06-18T13:34:50Z","spotify_id":"6aOG0zaWyzH1s5zRBKQW5y","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42532cea79fd7a9b1e4d2888a1a88696c06727a7cdf9bceebfc3cb0af9e1ce1a. 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/6aOG0zaWyzH1s5zRBKQW5y.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/6aOG0zaWyzH1s5zRBKQW5y.
Sambinha - Christian Prommer's NuJazz Remix
{"copyright_id":"0x42532cea79fd7a9b1e4d2888a1a88696c06727a7cdf9bceebfc3cb0af9e1ce1a","isrc":"BRBMG0300275","name":"É Preciso Perdoar","registered_at":"2026-06-18T13:34:50Z","spotify_id":"2vuXQsh1VnHXjeLb6LSkAZ","type":"track"}
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42532cea79fd7a9b1e4d2888a1a88696c06727a7cdf9bceebfc3cb0af9e1ce1a. 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/2vuXQsh1VnHXjeLb6LSkAZ.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/2vuXQsh1VnHXjeLb6LSkAZ.