Bossacucanova is a Brazilian musical group which combines traditional bossa nova with electronica. The group is most notable for having been nominated for a Latin Grammy award in 2002 for Best Brazil
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 0x7f69e9203b014a4e105ec5e15ea4c8daac1c8bc9a50496a8ca9f1a28ec6289f1. 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/edcb15c8-883f-49c8-b330-17a13c0775fb.json and https://artists.proofprofile.net/proofs/artist/edcb15c8-883f-49c8-b330-17a13c0775fb.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 0x6b18d987e588298b43a6a29fe6fdaea40050d7eb520f151f696f16eda14fac72. 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/BRED60400004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe399cffe09db654d4d2d28144b46ed2c14ff43c160c73abba4742f47679e64c. 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/BRED60800005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc50961ff15ba5ecb0307a7edeb3c1793be6b2f4da1e38b0ff80481aaa192f467. 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/BRED60800006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfec0f3c7fcc4daee7800ab8c9401c3cb686ec79835fb992cbf8b48a73db8f445. 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/BRED60400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf8638485fe1f19559ec43cd36b0f59a8e23ac64ec0f4a0ec1be4b657b316e614. 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/BRED60400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe93afefde0f7dd3c2035bfcf48a8e5a94af5a1b2ac8266518582f25ddb08e8b8. 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/BRED60400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6beff24ecf2a4e060157c7da307e815d4341e035991fe6c8ebd0c4757472fb17. 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/BRED60400008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x501e0693e0c3b0c0939ae1fec2c3471e805e0d4d67649eb981bf773fde809572. 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/BRED60400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07b82ea606580f3d2f353fbdfe5183ba992aabab46597eefb5c17d6dd431621d. 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/BRED60400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4fedf94b2dce4c23a4e79547e80adf1ecf104abedb59be5fcb3963b723cd635. 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/BRED60400015.
Bossacucanova ao Vivo (Uma Celebração aos 50 Anos da Bossa Nova)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x416da699e30ff606fc6aa00d666517bd8b58dc68b5e1701fb84eadb3ec358635. 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/BRED60800025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x928f72458049773815716b0b47d171a8e76b60a26e08ca5b5c97c6455b734ec6. 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/BRED60800028.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe4351cb0ae4a53d2e63e1cc0f4133a80b147e9f354d961f6e1ee457fcc795733. 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/BRED61200001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf323228efa83c2673c10aae0c45eca8b0affa2709378117e042fa1cb180c1c23. 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/BRED61200002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb94f60c7b9897ad62b855f3db59503a0ab62de607dcc2806fbf138dbb5808ae1. 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/BRED61200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x54cc5ad2e3619bb55891dfcd6664224c48d1e102a6e1681772dd5a72abfa7018. 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/BRED61200006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9185a2e48b9ab3637865ed49c7c0bc9ccc6eb8c63fe9042d46f39a0a0fd428d. 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/BRED61200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbce68c644abbbf9dee5edb39fb491f5f42f27b09039a9eb6fb8c0db693736c09. 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/BRED61200010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb06d5b6de836df1a0582f491c8a4f70066a7522babf0deafe243071ecc35bd00. 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/BRED61200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a4d5176b08b0f6f2f56c2f62bf93dfdc621b32a14c5c0ea96660b1c60e027e9. 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/BRB5T1900007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b2a9a5cbd356ca08e1642ddde5f4f27fb450f738c9c0750e0661540fd256072. 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/BRED60400006.