Ala dos Namorados is a Portuguese band created in 1993. Its duet "Solta-se o Beijo" with Sara Tavares reached platinum. Band members Nuno Guerreiro From the inception until 2025, the band's lead voca
1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 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 0xf9ee2dfc403b534ffeefa3d0680d584ac8f7ee39a1921797ef34dd75e7624d0e. 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/da5557d5-a374-4dee-844a-3b0188e7f1d4.json and https://artists.proofprofile.net/proofs/artist/da5557d5-a374-4dee-844a-3b0188e7f1d4.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a51c11070038dd680eee0a2ca7b67997af2a02481c46b208e08e010ff0c21a8. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTEM19800245.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1cd6fc12551948100a929d5daecf9e5a3fed7e40347358e10bdd3c1fc4441bc5. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTUM70600329.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3d91976284ead61442f4fa306a3a43d47aa0bf4c3550d0d14fa7c4b3ecb6c87. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTUM70700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x57dd5b30e665fb2b5540a5352e89bf8168b00d8047243e4c02c24ad54e5b629e. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTUM70700003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31b5d3ca3fdb86356cdf4f30e3dc7f96802e5e94dbc5a4c6e7b61327faa8eb2b. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTUM70700005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb94ee662b4e27cd0ae52bf0af0a67cfa57a0066717812769f1180307c183acf4. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTUM70700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad47f594ca804081398c1dd36937dc91970c65f8970e50a3302ccb0fedefbde7. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ1875432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c44f2b22379e8d903a5044b84ec3d6a2417441959fba7d4eb261dde3bc40f94. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ1875440.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d78021d86b83e205139be5fa6800f988a2ecfd6128b8b91ed84d96a0cc9afe5. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ1875427.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x500111a077f946a1f8a4769aef0601adcba50ec8e00cadd35b5a7553e7495754. Chain 2 (Bitcoin): anchored in block 960455 (2026-07-31T19:53:13Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ1875429.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4f15f578f2261820ec06db603870ea8476bdeef71f0213578cd5dd6c867263c8. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/QM6MZ1850798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa76f19d84542d898e17526c7d7ea5112dccfa5def97f0774013a38b0a19e0b28. Chain 2 (Bitcoin): anchored in block 957848 (2026-07-13T10:31:25Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR11700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf24ae6b62f52ea6b0df4e757437307b75c171e5d713b4e86ff62690bf84dfa0f. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR11900036.
Felicidade - Ao Vivo No Coliseu de Lisboa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb49b6688af4bec1457cf11e39a87844d4680e295ab090fd46896907531a6fac7. Chain 2 (Bitcoin): anchored in block 960473 (2026-07-31T22:27:44Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR11900022.
Caçador de Sóis - Ao Vivo No Coliseu de Lisboa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad4d80dcee655e8ad0b660375235125d25def48a047f9dc967bb4440608b12a1. Chain 2 (Bitcoin): anchored in block 960441 (2026-07-31T17:29:52Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR11900030.
Samba do Crime - Ao Vivo No Coliseu de Lisboa
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x728c293dd99db76052d58b6a1a364209d7a539013d24b023cd96ee81b65c621e. Chain 2 (Bitcoin): anchored in block 960468 (2026-07-31T21:25:57Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR11900031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x124b5e9745bb6b01b1eedcb38bff786f17c1d95b0c2cf592c633afd8e907b63d. Chain 2 (Bitcoin): anchored in block 960348 (2026-07-31T05:17:02Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTLR11800016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70f6797b61999aeb86aadbe23b1fd750b3bf9c226f83a4810a88ba1322141d28. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PT6GJ1700010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37e169483b02613d82679871df3710ee9c10574bee58bebe24006c6788f3ae1b. Chain 2 (Bitcoin): anchored in block 960379 (2026-07-31T09:25:34Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/PTFA11301839.