Yola Semedo (born 8 May 1978) is an Angolan singer, known for her work both as part of the group Impactus 4 as well as her solo albums. She is known for songs such as "Você me abana", "Não entendo", a
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 0x2f4f7c390ac176997d267cd68e32025698403fe7909102cdfc0e5f19b71878ab. 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/7793668d-7da3-43fc-b17f-3e67ec602646.json and https://artists.proofprofile.net/proofs/artist/7793668d-7da3-43fc-b17f-3e67ec602646.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 0xff4a51c67cf14d2d5a5ecca36514e46b66fc40fe93791c184c069e1d9803a34f. Chain 2 (Bitcoin): anchored in block 957599 (2026-07-11T19:42:17Z), 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/AOGEA2300351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66b28f15a01e448b76e6308f45366a7452744d086017385165990d529a3ec022. Chain 2 (Bitcoin): anchored in block 958700 (2026-07-19T08:09:50Z), 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/AOGEA2300355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d4ce71bbe11fefb4bee23520e028ccd8cebd35c4f682c95865c191886ac25c6. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/AOGEA2300357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x854f9ab31a0a3675abf3df01943220074852976c733d9cfa0c67ac4433a71f32. Chain 2 (Bitcoin): anchored in block 957775 (2026-07-13T00:04:23Z), 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/PTBM11500097.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x886192eb4a429e52cf0b325739fd11d7d77b692870687f00124dbe772623e9ae. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/PTBM11500106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1652fa3ddc80c6f9abe7142624f4f4987073d67ee37b74ad04b38f4cba848c73. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T16:14:34Z), 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/TCADP1831769.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3705fe63710040b04f663cd420706ea551a1e67b236c5194248464086af36152. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/TCADP1831778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa27f6fc9947f254d6894dc281ed9a1e8b6b46d53cb4f13abc968f20935f6eede. 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/TCADP1831781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8413647b4dff37bb68091233e763e71ce85c1819faa0628f59706b40248b2b5d. 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/TCADP1831798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e8c80aaedee504f05e5860fc4f9f40066495b717f584d91d0645d2b58463df4. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/TCADP1831803.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc03b91a9a2644fc2166715f8929430f969fe48152a584e002d691976746fd534. 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/TCADP1831806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cc903de1b3575987416a503596c7f2aa19b3e968fab879c132f7d3ef32c7301. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/TCAGA2290596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d60d5c0ad51071120ce26783b09dd05485dfbebfc07a06f69ecb70f10452e9c. Chain 2 (Bitcoin): anchored in block 959037 (2026-07-21T16:59:47Z), 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/ES71G2229716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfc53cc20146273827ce1cba81c0cb195858d587572bf11b8808386f83b56a802. Chain 2 (Bitcoin): anchored in block 958876 (2026-07-20T12:15:48Z), 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/TCAGM2286842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c129f53600d01ad59de471f84bc3618425fe12c96051e334071c9a6fc7ea75b. Chain 2 (Bitcoin): anchored in block 958965 (2026-07-21T04:29:05Z), 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/TCAGP2271927.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3add24603de662de9466e0b6e92a8cd9bdcfca2be6f88c7c703a56847f00808. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/TCAGP2271953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e23ece4097c3490124534e833de3caa3dc9fea7e112dd7214b784c9e7f25241. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCAGP2271959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d7b64b1b620cf8bf6ee0d6d459db717d5a478321f9a185732e47228111c3b7c. Chain 2 (Bitcoin): anchored in block 958436 (2026-07-17T16:42:22Z), 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/AOGEA2300336.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x970c46fd46fcb1c1b61b9c32a55e905576c6b17a3e633a24d7b074829e885da0. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/AOGEA2300344.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1498918f51dd074ec9c815fedb06682e96adf085c889800e71badb5c1ab28cc. Chain 2 (Bitcoin): anchored in block 958596 (2026-07-18T18:42:38Z), 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/AOGEA2300365.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x392b6e2a889c02517c00a95db69d670e6ce75a426d23fbb72cc0f4678786b446. Chain 2 (Bitcoin): anchored in block 958390 (2026-07-17T09:35:49Z), 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/TCAJF2577804.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x40f2e498dfc44442968c253cd3de04863215e0e1f005b22121ed701280c2a384. 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/BXWOD2000003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7d9f4ac5b828341c5be83f0256f4f022d0d449f5cb04d73144896bf1cd260db7. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/QM6P41563622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86389e42d3171529d19ef5717f3261aa4d36af488698c1ad5b51b8b5d6ac38a0. 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/PT0IP2300020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0253ce7bbf8704644d464b9044dcba1ed028ac5659a0413086103218a606c3b3. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), 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/FR6V81738413.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x746145ae02d45c12ea2baaa62d1a46942e1fa7299073bb938f618246378d49ec. 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/PTVI11000203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x746145ae02d45c12ea2baaa62d1a46942e1fa7299073bb938f618246378d49ec. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/PTVI11000203.