Ildo Lobo (November 25, 1953 – October 20, 2004) was a Cape Verdean singer. His versatile and melodic voice, commanding stage presence and trademark berets made him one of the most recognizable perfor
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 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 0xf42c9678296fc0a44bc13c50499c8c4bfe391f0c0da1c928b1bfedae0f435f69. 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/68b1a8ed-a47e-4a3c-a044-2f9126cf88df.json and https://artists.proofprofile.net/proofs/artist/68b1a8ed-a47e-4a3c-a044-2f9126cf88df.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 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 0xb7460d10218957e75e7340312a837b6fcebf8d908391d7a138b3c3e444150036. 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/FRX629634010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7e94fb1630277c365e609f8e4a6194c283c41d7d48f4d8f23e05ea9bba7e192. Chain 2 (Bitcoin): anchored in block 958792 (2026-07-19T22:55:52Z), 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/FRX629634020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x116f1aa6b98538b5be3fb55f4eb75ca347a56c447ae798030dde4f33542999ee. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FRX629634030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb69168ce9d64380ced01c1d24729807cda9081b612c786d917520fbba589f262. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/FRX629634040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cd2fad7484f0282d8155a9a33ce1e901b8d253345613ddd3654f4ec5636050c. 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/FRX629634050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xafbe321d7c2a11a471562e38fb60cd32b482ec0f7c2b1ece7f3d7ab52143e71c. Chain 2 (Bitcoin): anchored in block 958067 (2026-07-14T21:26:15Z), 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/FRX629634060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x773487d80e9bcc3784da44e9051bef0cc0eab91e512e45b4302214a5511e4fff. Chain 2 (Bitcoin): anchored in block 958885 (2026-07-20T13:01:04Z), 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/FRX629634070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62a2048c9422c831e2b6f7ef7cd6fa1e64aa1b275e950d887ad5ef14e6e2952e. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/FRX629634100.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd4f400070a303f3781b00b97d42e3563a7dca8879fc5305b5f1178505b98ae5. Chain 2 (Bitcoin): anchored in block 958316 (2026-07-16T19:42:29Z), 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/FRX620143010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd83c65a3a8ee2ba3e37cea74ccf39633a8ac250909721a1cde8c2b3fe1f390e6. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/FRX620143030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bb0d0ae2a952e8ac4531e9b12957feaffc639220e94467256a07a3bdaf72d65. Chain 2 (Bitcoin): anchored in block 957650 (2026-07-12T04:18:57Z), 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/FRX620143050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44a90b1e15a67f671b8cb2686273bdf131b7e5daccd7fe19371a461ce0bc3e0e. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), 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/FRX620143060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd9cae3fb968ccf62738785d87476f5c88b3e05693ebbfe6fb889d8c0041df3bf. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/FRX620143080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2e89af6bf9ec64c7f3cf9b2e934c5c5108232e13ae83698691c9b3fd3e7d93c. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/FRX620143090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x88a255f8c72b55fcc640c0e749b8080ad2269b695bde31e9ec6a66c69a090e44. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/FRX620420030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc651e7921d1cf57e2d5713c09003db3fc9dab575384c9f795e6ef795854062fd. Chain 2 (Bitcoin): anchored in block 958468 (2026-07-18T00:27:51Z), 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/FRX620420040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x700b29e8a999ccd9864910996367642f973bf8a197b2cbc3aa33a9fc1502cedd. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/FRX620420050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e7a35d7936cb9300fd2b292ce4d3158f9fd940c0c3830d7145e486173921d11. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/FRX620420070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4717ab9892a3a560c352212f7d4806377098522d55df80dfed1e0a4d696b2565. Chain 2 (Bitcoin): anchored in block 958917 (2026-07-20T17:53:56Z), 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/FRX620420080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x699e91c51ed8627103a4701ef03cfa0bb494c83729d6d6d587e0270e217515ac. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/FRX620420090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdea83c96665406c88973787134de3e55f5f333284d9ebbd607d0c3a3740cbd21. Chain 2 (Bitcoin): anchored in block 959094 (2026-07-22T03:33:16Z), 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/FRX620420110.
Ô Espirito E Âlma De Cabo Verde / The Spirit & Soul of Cabo Verde
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa01d943ef482a1ac69e94c2fcc7c7d0a68804a6b3ed22ac6dceb9fe6469cfc40. Chain 2 (Bitcoin): anchored in block 960494 (2026-08-01T01:44:32Z), 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/FRX629634080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x861962c514c5b59073b6f1264d4e7a0d87e867f47f32b22cb4800799c88b7e9d. 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/QMDA71569067.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa61dd0eb6483cff145d88a5bba74c39855069f6b17e64ee035c7aa6640c5f13f. Chain 2 (Bitcoin): anchored in block 960291 (2026-07-30T18:23:33Z), 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/FR54E1201552.
Homenagem a Manuel d'Novas - As Mais Lindas Canções
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38e69933a7fff822b489ee5a3cbe45f2afb1cd7188b85dddba72c59e1b686e59. 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/QM7281572718.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa01d943ef482a1ac69e94c2fcc7c7d0a68804a6b3ed22ac6dceb9fe6469cfc40. Chain 2 (Bitcoin): anchored in block 960360 (2026-07-31T06:42:11Z), 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/FRX629634080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8a9f7602b0a13574a4c52f5d368cc7308c9b7d3f7c94573bac7ce5f474c10c4. Chain 2 (Bitcoin): anchored in block 960240 (2026-07-30T09:57:33Z), 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/FRX620160140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52d2ea347150417798b5001dcbe120539b64bf053368c30542133a0bf59c8d30. 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/FRX620160150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa01d943ef482a1ac69e94c2fcc7c7d0a68804a6b3ed22ac6dceb9fe6469cfc40. Chain 2 (Bitcoin): anchored in block 960273 (2026-07-30T15:42:38Z), 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/FRX629634080.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1fa8544fa8245f00b8a0cfb5692a0929bb3592b9e4e1b00694d9e57bbbd5703c. Chain 2 (Bitcoin): anchored in block 960145 (2026-07-29T21:13:37Z), 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/FRX620420010.