Mayra Andrade (born 13 February 1985) is a Cape Verdean singer who lives and records in Lisbon, Portugal. Background Andrade was born in Havana, Cuba, to parents from Cape Verde, and she and her fami
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 0x2a577cc756f88169a8b5e3e88bf4a849388c8ca9abd5ecb1230b7bc6ba5fe5b3. 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/79daddb5-fc99-496a-9c89-527e21a625bc.json and https://artists.proofprofile.net/proofs/artist/79daddb5-fc99-496a-9c89-527e21a625bc.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 0x80bdc0087b265380326e59da527bcba12891e49091a51049d92086d56c9dd9ef. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/FRZ052400038.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad771982c86753d47696f106ee23511df6585b131c5c823b3fd56fa6364cf9db. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/FXQ312300106.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc8a7ca1b38997f098a912ec908d2d834a8055eaf5f4550d680f1042196fd12c. Chain 2 (Bitcoin): anchored in block 957750 (2026-07-12T20:39:38Z), 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/FXQ312300107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x25e631ec710b380de60774a452f714de93d499635ce8061ba09df3df13fcd7ea. Chain 2 (Bitcoin): anchored in block 957751 (2026-07-12T20:41:42Z), 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/FXQ312300110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d5c6a17ffcfd71e225a1970e3a06b4e11dac5d27cbdd9a83453276743ba7cde. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/BRP0J2200005.
The Harder They Fall (The Motion Picture Soundtrack)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c7fc56622418eb93bab6ee0f49c1201848ef6a47ba3a6fc64a0887343c004f6. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/QMJMT2103903.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x60a66545cf2d82600226944bc508a8f1abfd55df704330fc8eb6b133f2e90bb4. Chain 2 (Bitcoin): anchored in block 953513 (2026-06-13T12:47:07Z), 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/PTEN11600014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3af5bea7b7e2b68b944c08681d8113e639dc11255b5db433a015fefcde701161. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/FRUM71501535.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a9920ae37828c9c9ef46c3e56b67b52b675c04ddbabb13eea06de3a32b16e5a. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/DEEQ71405507.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c9956ac206dee95af7645e1e71dc2657c40f8948bea398a3a861d79d957e8eb. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/QZH5R2000152.
samson and delilah (feat. Mayra Andrade)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb0177bb595675ffa9968174fc61a859e1d1f39cfe514f5cb6481f4a93da668f5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/ZA34K2200918.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32649e8b62495cb561bb3371c3dc1629db3de5cbf90a59236be49538ab68d7a0. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/BXA5K2100007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6cbebdafb8aa90a17d1e584423bfa2d297356a747be70f2ed0f36dcf02e33d5f. Chain 2 (Bitcoin): anchored in block 953520 (2026-06-13T13:32:09Z), 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/BXCSE1900004.