Raquel Filipa Tavares (born January 11, 1985) is a Portuguese Fado singer. Career Tavares has won a popular Fado song contest in Portugal, called "Grande Noite do Fado." Tavares regularly sang at t
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 0x5e555afc45980e151b64c75b549d565231ccc19a89bb8a23f60a9d3a2b926be0. 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/f6622e5f-cb3e-4593-9927-64f3a6611d94.json and https://artists.proofprofile.net/proofs/artist/f6622e5f-cb3e-4593-9927-64f3a6611d94.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 0x45bb4be1e66ef2b4f6f8303079eec680c196aff77cbf37150cf6260807acb287. Chain 2 (Bitcoin): anchored in block 958216 (2026-07-16T00:00:34Z), 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/PT0FA1600001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd9c05257ce3f4a65fc7f751faef8952de20976e0fa97b75ddaeb27798466e2e. Chain 2 (Bitcoin): anchored in block 958708 (2026-07-19T09:08:25Z), 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/PT0FA1600003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe2f2b6871f9b2de74f77d7362d175dae9cb019d315963b3562390eac7e40f74. Chain 2 (Bitcoin): anchored in block 958631 (2026-07-19T00:50:09Z), 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/PT0FA1600005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd376d4c47f7a23f186beaffa4d371629731f1aa52a255782fad49d755f7233ad. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/PT0FA1600006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x485f16d3155f18954488487ff402c117ba7e29fefe1e332c5483120191c5c28c. Chain 2 (Bitcoin): anchored in block 958363 (2026-07-17T04:34:46Z), 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/PT0FA1600007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3218849052138ca20551ab3534538fb78454ed0d9c8ff807139538a4545e28b2. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/PTBM11700185.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcee1affcf4c373017bd5b7895622420ad0c00dc38dc2a9d7434d39573bff1949. Chain 2 (Bitcoin): anchored in block 958401 (2026-07-17T11:10:25Z), 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/PTBM11700187.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0cc6dd9f7545f7cc4427461379036a720a5201ad54c4f9cb5c7ba846b3a716b7. Chain 2 (Bitcoin): anchored in block 958122 (2026-07-15T08:02:29Z), 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/PTBM11700188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a2fbe470dcc398f13aef90c906d2ac174940cbdb4dd15479a158fba97d67084. Chain 2 (Bitcoin): anchored in block 958397 (2026-07-17T10:29:45Z), 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/PTBM11700189.
Debaixo dos Caracóis dos Seus Cabelos (feat. Caetano Veloso)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfeed2be0a7c894d1aa091208536951c3b7c4e9ec1983012bfb490a05fcc57cf9. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/PTBM11700190.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12d023bfa8be3ece9d652be64a90d594303da7914b503277bf41086ac182d1ac. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/PTBM11700191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf16c87e1da23550fb884e2a7f6f6ee4395c71aad2b4305018797690b52d1dc6. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T10:17:52Z), 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/PTBM11700192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5207874d39c3c52bbe29d6236367ae1cdb68115e388b1ea0452553d428e0563. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/PTBM11700193.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97e527e24e09541fc65e3b1321d245a178d1216fb77707f5b74ffbf09773ecf0. Chain 2 (Bitcoin): anchored in block 957863 (2026-07-13T14:41:15Z), 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/PTBM11700194.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4454d7f8f68b015bb1efd813a91a28e7d1e4ed1ad813f72efe81842a6fe19707. Chain 2 (Bitcoin): anchored in block 956576 (2026-07-04T02:06:47Z), 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/PTBM11700195.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66dfb815035c0ef365306ab8abd7bf3ad2f90b60665cc7e2a0a2a4ade467ae23. Chain 2 (Bitcoin): anchored in block 956790 (2026-07-05T12:31:54Z), 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/PTBM11700196.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ee8920de9359b59dc3187eb524ad96977e9a2f1da43134c075d1ebe7acb8641. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/PTBM11700197.
Traz Outro Amigo Também (feat. Raquel Tavares & Antonio Zambujo) - Ao Vivo
Resistência Ao Vivo no Atlântico - 25 Anos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8368b9c719d9cdfde70c0068f07d1fccd435ded593e6e9b13f2ea33e92625f0. 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/PTNW12000019.
Liberdade (feat. Raquel Tavares) - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a76b56e1da12559ec355a0fe0faaa23f6c6bfe7b6689ff724e8acc0f51201ee. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/PTNW12000013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bf71da3b2d20f8dc97553e3d2170819030880ad56b98b5a4fc0c0a6d8d5e09e. 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/PT6GJ1700009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x393f6009e2875ad5a6d4bfb8962cc438a31cda52dda04250c3e2e14bcd6c2f04. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/PTUM71700150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x393f6009e2875ad5a6d4bfb8962cc438a31cda52dda04250c3e2e14bcd6c2f04. 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/PTUM71700150.
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 0x44a9ef740180aade3c3a0aa098e426576ebcd3b6698630d2ba4ed92f95c50014. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/PTUM71700293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x675081bf0fe073b7fee5454adca1e9e58dbc63d69c9ef261f2657855787da182. 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/NLRD52409953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3efa1779d546202a53fc9e7f6795d857b4a5b813769ea5cba251ea527d010865. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/PTBM11600298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x712f2a00914fbb8cc292f1052496bb69ee8896baa491a38d45448e0b98df74e7. Chain 2 (Bitcoin): anchored in block 960207 (2026-07-30T04:47:22Z), 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/PT8HR1900014.
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 0x0d458e93fa7cd7f981af265b0322feb56b3230deab41f57f3e0ca435206ac20b. Chain 2 (Bitcoin): anchored in block 960111 (2026-07-29T13:21:01Z), 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/PTVC12300225.
Mensagem (Poemas de Fernando Pessoa e Músicas de André Luiz Oliveira)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ed9bc2e278aa072a51b12d6036afed10f29f47dd44e8609550b7f3f2fd5cb8a. Chain 2 (Bitcoin): anchored in block 960284 (2026-07-30T17:23:26Z), 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/BR8ND1300014.