Marcelo Falcão Custódio (born May 31, 1973, in Rio de Janeiro) is a Brazilian musician, the lead singer of the group O Rappa. Falcão was born and grew up in Engenho Novo, Rio de Janeiro. He sang wit
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 0xa05312f7aab29af186ca9154ffaaf689f137c989bacd3635bc115d4fd3033927. 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/be835ce2-bda3-4b00-9846-772f28c66be3.json and https://artists.proofprofile.net/proofs/artist/be835ce2-bda3-4b00-9846-772f28c66be3.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Viver (Participação especial de Lula Queiroga)
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 0x59a68f29abfd53590ea9a8d50c76ae8e9c46692928cd02582d13d3aaacb0e745. 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/BRWMB1800825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67dbb2d3a10c49ed67bdf1a735629c86704eab3f4c33cfa3b18ca89e77400e12. 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/BRWMB1800831.
Diz aí (Participação especial de Cedric Myton)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b7880bbbbd8ba25acd84d79efb06e49fa7a3dc10301fa8081a2735c6c9c1640. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/BRWMB1800830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3127e1d6e47a4839bea9e5acfc66cd48876fa00b43dcbf3bb2a29ffd1bf0870f. 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/BRWMB1800832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fb8765dc9cf292d2caa1f45b32816d01430971b8edb29011bac3ef60b4580a9. 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/BRWMB1800835.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea737da9dd5132409355bdef05c439a0fd4d2052218dde86974b09e60fe6347f. 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/BRWMB1800834.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6d43c27ca1ab55d6e608b21854d33045b0cf609621f3298fc0e31ee9e66dedc4. 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/BRWMB1800826.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x011f99ae71fd9589a0a6eabc29ea15a9e4ef3e12947ad231788ec5e2603a6916. 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/BRWMB1800827.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3127e1d6e47a4839bea9e5acfc66cd48876fa00b43dcbf3bb2a29ffd1bf0870f. 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/BRWMB1800832.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c817b4a50d2c0abacf9ba57bc30e379bd49b77ca4c2442ae8b7802b54a69135. 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/BRWMB1800924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3ee527b98a8af967d2f96cf058cc91056a184235d95a65d86a46ec5a07e578b. 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/BRWMB1800829.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b7880bbbbd8ba25acd84d79efb06e49fa7a3dc10301fa8081a2735c6c9c1640. 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/BRWMB1800830.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f795562c27d99553c94ca23c9b2cfa7a453e8b7f409dfb4fa9f1e52e4a06747. 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/BRWMB1800828.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67dbb2d3a10c49ed67bdf1a735629c86704eab3f4c33cfa3b18ca89e77400e12. 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/BRWMB1800831.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4026217bcd269c25201701d6f7c1f43d76826cd1951a5c13b8593da3c4e6385e. 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/BRWMB1800838.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x517ba8efa5a077b29f8bc6cbdf92660d3b602890e95083e8035f363c5b22087f. 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/BRWMB1800837.
Senhor fazei de mim (Um instrumento de tua paz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f9f2d70937a6fdda26c53ee4dd352a951c0e3ea828873e3f4456bef73962c98. 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/BRWMB1800833.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5993076c596b22ea6674c86d19666d14652a8a1c40eab12b1c8b769cfc5e7298. 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/BRWMB2000917.
Você Precisa de Alguém (feat. Marcelo Falcão) - Acústico
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69c92e8b8c3b7f6796875912e8702f9b26ab1f054b3aaea82a00a6060343195c. 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/BRSME1701616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc860211e59395e56ec81ec7f6fc5c7f9d85ee7aab6f9c69a9cae866d53bb562c. Chain 2 (Bitcoin): anchored in block 960410 (2026-07-31T13:50:38Z), 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/BRXUI2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd984ad7fede08179bd1e75af3576d62b3b3895804c577c1dda568d41efb2b5c6. 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/BRL1P2400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfae8c91a4a7ea433a36843488f6daedac65ed95781c66d89bd47db2c7ddee9fa. 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/BR9U91200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3c76b9a113d4f22efe5e527d9948243ebbe2bbdb9aeb511eaa756b23d46a70c. 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/BR9U91200017.
Música Popular Caiçara: Edição Luxo (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfae8c91a4a7ea433a36843488f6daedac65ed95781c66d89bd47db2c7ddee9fa. 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/BR9U91200016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3c76b9a113d4f22efe5e527d9948243ebbe2bbdb9aeb511eaa756b23d46a70c. 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/BR9U91200017.
Me Deixa (feat. Marcelo Falcão) - Ao Vivo
Multishow ao Vivo - Jota Quest - Folia & Caos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8e6593d8ef734f83ce32268a2f6f61c6a11f7516c9f35d42e4d81acc3e8778ce. 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/BRSME1200085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5993076c596b22ea6674c86d19666d14652a8a1c40eab12b1c8b769cfc5e7298. 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/BRWMB2000917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7964e85918d2d5539f362d60c38655d194a3248a23148f221a5619b1be34fd99. 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/QZNJW2392775.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6d968e1f38b1e99db15cea3bb1be70516b47b9b528453f4c23def70bce1c507. 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/BRKGM1300010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4db730062e449e0e296ddb9a3263f2a80fd35a3400b7bfc60f5e715838a57fe8. 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/BRUM72300669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4db730062e449e0e296ddb9a3263f2a80fd35a3400b7bfc60f5e715838a57fe8. 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/BRUM72300669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a68f29abfd53590ea9a8d50c76ae8e9c46692928cd02582d13d3aaacb0e745. 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/BRWMB1800825.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14ea474aa579b9c19e9f8ae0288645c0f25c515953d6590421ee873acbcb7f34. 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/BRWMB1700568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13a7f7cde5c5d8d74cd7314a09faa560ed8776a6f27f2df48aa86df39d185b8c. 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/QZNJY2000909.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5a22ecd2a6c65ea5f378c76b56aa2ea3733e38971a1cbeacceed646c079dd2d. 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/BRSME2201112.