Marcos Freire Cobo (born 16 July 2006) is a Spanish cyclist, who currently rides for UCI Continental team . He is the son of Óscar Freire. Career He rode in 2023 and 2024 with the BathCo Cycling team
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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2400881fedbf9a0a01a49db27acd2223b8c719488fd0805465f037f6fdf9c629. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c8a7d812-ee69-487e-8916-e5a4ddaa6928.json and https://artists.proofprofile.net/proofs/artist/c8a7d812-ee69-487e-8916-e5a4ddaa6928.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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x049cb3f7ba15407abcbfd5ebb3b4cda503567cda35a2cee4289c6f19c8587d1d. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/BXMF01500005.
Sopra Espírito [Na Igreja - (In Memoriam Ludmila Ferber) [Playback -Ao Vivo]]
Nada Se Compara a Ti (feat. André Valadão)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe96c0ab70f9eff432bea845c177c643b2699a89d674fdfb40d0e4995b11770bf. Chain 2 (Bitcoin): anchored in block 958612 (2026-07-18T21:29:37Z), 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/BXMF01700002.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2dbc5596f38213235d90082162cd4efd5d1cf62230892c4bef9fc53627d180ed. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T14:36:25Z), 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/BXMF01700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23525de53a19e0d101ef306564ddd5ac1542a0ef7c4354741b87aec2b12d81ec. 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/BXMF01800004.
Na Terra Como no Céu (feat. Fernanda Brum)
Na Terra Como No Céu (Here As In Heaven) (feat. Fernanda Brum)
Na Terra Como no Céu (feat. Fernanda Brum) [Playback]
A Tua Glória Me Atrai (feat. Nívea Soares)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2373ada502be2f1a0ddb5bd648afde2e743ccd8c5dd88af343f83669d0b8d7c6. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T23:11:49Z), 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/BXMF01900009.
Ainda que os Medos Tentem Me Parar (feat. Isaias Saad)
Na Terra Como No Céu (Here As In Heaven) [Acústico]
Na Terra Como no Céu (Here As In Heaven) [Acústico]
Farás Outra Vez (Do It Again) [Acústico]
Farás Outra Vez (Do It Again) - Acústico
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaf2b3ba2671ff8e7c6f22e7f2eb8253f9d331d78509d923352d29544a1f7d1ff. Chain 2 (Bitcoin): anchored in block 958864 (2026-07-20T13:20:22Z), 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/BXMF02100003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x06851d80d92cc90f7ec0bddf5a02526de04d4ba63bdf0f77d1d47f5bc1f7f64a. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/BXMF02100019.
Vencedor (CHAMPION) [feat. Coral Black To Black] [Ao Vivo]
Vai Fluir (feat. Coral Black To Black) [Ao Vivo]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x019bcdfb5008ec77dcab46ade60d08d821247e8761d3892dfe5ad79b2f4b3b27. 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/BC89P2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x019bcdfb5008ec77dcab46ade60d08d821247e8761d3892dfe5ad79b2f4b3b27. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/BC89P2300003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8607d7ecc4a40a241016275ed180b370e2e254caf110190dcd0a54600028a690. 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/BC89P2300004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8557d5c2a468ce36c00175bcdee931777290eabce40ababcc1ad43badfa14b6. Chain 2 (Bitcoin): anchored in block 958212 (2026-07-15T23:25:50Z), 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/BXMF02300001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x019bcdfb5008ec77dcab46ade60d08d821247e8761d3892dfe5ad79b2f4b3b27. 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/BC89P2300003.
Yahweh Se Manifestará (Na Igreja - Ao Vivo)
Yahweh Se Manifestará - Na Igreja - Ao Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d01172bb05d7bd0d52baa0a8e0c41000bbcdc72a14e530cbf4950c37ecfc05a. 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/BXMF02400001.
Yahweh Se Manifestará - Na Igreja (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x013578cbbaece14462ac7a8c3337ac2e744403c0dd3e7a7905572d6dde3a5665. 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/BXMF02400003.
Sopra Espírito (Na Igreja - In Memoriam Ludmila Ferber, Ao Vivo)
Sopra Espírito - Na Igreja (In Memoriam Ludmila Ferber)
Fogo em Teus Olhos (Ao Vivo em São Paulo)
Yeshua (Ao Vivo em São Paulo) [Playback]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeef01ed36cc81c9d7cbc3bb67c680cbdd7c869c31ef3b7f9cdf66fa209ad6dc5. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T18:01:47Z), 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/BXMF02500015.
O Que Sua Glória Fez Comigo (Ao Vivo em São Paulo)
O Que Sua Glória Fez Comigo - Ao Vivo em São Paulo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b0ac7232ef704dc0c82ef7127149177221a9699f2ad67a7984a73e87e0c7a23. 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/BXMF02500016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf0a6e2cbb65bfddefaee9c333f3b005ad185dafd1354c6f2d5e102a4b031fec2. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), 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/BXMF02500023.
Porque Ele Vive (Ao Vivo em São Paulo) - Playback
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1827583f518dd5c1688de17685133bb8c3bb30a720c6898cbac7a32c1a99b11. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/BXMF02500025.
Melhor Amigo / O Que Seria de Mim (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdec20d3ee9a05f8a243d139f675d0f1b33a7f763844fed60fffea3de1d1a56e. 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/BRSME2300495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdec20d3ee9a05f8a243d139f675d0f1b33a7f763844fed60fffea3de1d1a56e. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/BRSME2300495.
Onde o Fogo Não Apaga (Ao Vivo) [Playback]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a113542c88a94cb058cd1a2e9089d6d0699c41000f22b7b0b46e8defc44d84a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/BRSME2300543.