Ricardo Alberto Medeiros Chaves (born 27 October 1977) is a Portuguese retired footballer who played as a central midfielder, and is a manager. Club career Born in Valpaços, Vila Real District, Chave
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 0xe4dcfe19b39d03554fffe3c9d700275865a4e26c878b2a9194b347890fd1a951. 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/fd9c6efa-651f-455b-a551-b545b5da6091.json and https://artists.proofprofile.net/proofs/artist/fd9c6efa-651f-455b-a551-b545b5da6091.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 0xc2c923b44a39daf7c2c033017f633bcf82322d75223ebd95591eebf5243bec6b. 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/BRP952000017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x276164fdbae82ce5ee8bafa71a6fd6521b1432730c52e2d3ff4fde2608f07d5a. 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/BRP952000018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c7b3e17383c018eaec60d88f00c0c3b6f6b88a584896d0c6d4712065af97878. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/BRP952000023.
Pout Pourri - Vou Te Dar Amor /Eu Sei Que Vou Te Amar
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xab6c4e61253c67299682ba4761e002879c686bd6cedce65ad741bb606c890a49. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-19T23:47:55Z), 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/BRP952000048.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa685a2d3cc8d355945a5da4fe3cd02dbb74e605a776583c08dad2f9d45dab67a. Chain 2 (Bitcoin): anchored in block 958633 (2026-07-19T00:54:50Z), 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/BRP952000062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf6e2be34be604445e5d224567ea8f0406f6fa31fa7af7ba0246e5d73855892e8. 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/BRBMG9600817.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fda6d581fd09342f31c4fb4984a9d59033d80760960e430d73713a1c829b3ed. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T21:08:39Z), 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/BRP952000077.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf644fdbb3cd7cf232ed9b6cb445339be312c0fb2c1ee9977ecd8a556692da85. Chain 2 (Bitcoin): anchored in block 958779 (2026-07-19T23:36:53Z), 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/BRP952000088.
Vulcão Do Amor/Esperança Renovada/Diamante Negro (Ao Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3d25f356eed1589bc3e0c7c9231d10c30600e5275f53e67e2abc353f461a5009. 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/BRP952000033.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1bd7f52651bcb44429d9b6d03c9c9c782e369d5f815d6727025cd3c27cd243cc. 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/BRAPI0701891.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7feb2371b004407e9acfe978e3ead715e402b4336fc0b5ce1b5e36cb7f070ae. 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/BRAPI0900707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf95c6ef47d171de64801bc241f179d99afa01e08b3bd725b175373382f25184a. Chain 2 (Bitcoin): anchored in block 958508 (2026-07-18T06:27:01Z), 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/BRAPI0900715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x28d6cbd7c3fe623481f1c9312bc58cd8f338a9626a68a9b06862021b3d459bad. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/BRAPI0900716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20326ef8feb5c3a8f95972da87accec5bb7a1141d4ddf3293a70027b5bd66945. 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/BRAPI1200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ec00a1bd7db9cb4fda0e63da31c1a482a5bb44177fbfbd48e857736cd4e928e. 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/BRVWJ2500004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c9495c277090f26bf5e10573e22642a6310697f5e4fc1f73de2d491af31878b. 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/BRUM70500306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x48056372c572875e5745eef83ae904958732874e69da5900f726f4881b81072a. 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/BRUM70500307.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7feb2371b004407e9acfe978e3ead715e402b4336fc0b5ce1b5e36cb7f070ae. 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/BRAPI0900707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x20326ef8feb5c3a8f95972da87accec5bb7a1141d4ddf3293a70027b5bd66945. 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/BRAPI1200011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e0a3456892995470c81f84da17e421a767dd5de9552810df1b49564c610259f. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/BRLXL2300007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5198afc34dfef89dfc696d091c9a665445743c309242cd36c60258e98094f4d. Chain 2 (Bitcoin): anchored in block 960163 (2026-07-29T23:20:38Z), 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/BCO132100002.
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 0x05bcfe566c7600c228ff638d0aa7a1d9d0eeac3cd25d9948f5415f1c92d908ed. Chain 2 (Bitcoin): anchored in block 960327 (2026-07-31T00:26:26Z), 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/BRAPI0900712.