Miguel Brito dos Reis Dias (born April 1, 1968, in Santa Maria) is a retired boxer from The Netherlands, who was born on Cape Verde. He represented the Netherlands at the 1992 Summer Olympics in Barce
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 0x168e32d66c7c5366048bbbbdc2e9287bbe784588b68ecde7f4569530c98db794. 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/4a530a9b-e33a-4606-ace9-b5d07f4008f1.json and https://artists.proofprofile.net/proofs/artist/4a530a9b-e33a-4606-ace9-b5d07f4008f1.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 0xc192d97f8a9a38bc33029342371bb9c3994803c52813afd8f8b7e21368a6a65b. Chain 2 (Bitcoin): anchored in block 957754 (2026-07-12T21:26:22Z), 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/TCAEK1922206.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x45b585ab30e5a82b3b40abb542d4362b307608159deff4e553970bb57b3bfc8b. 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/TCAEO1936151.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc4f8bb63743c957b7ccddf527da60471cdd5bca304566088721cd139c41e04c. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/TCAIL2499102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc4f8bb63743c957b7ccddf527da60471cdd5bca304566088721cd139c41e04c. Chain 2 (Bitcoin): anchored in block 958170 (2026-07-15T16:21:50Z), 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/TCAIL2499102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd41c58483adc03170ee19c9dd85d10bd3bdbbfb1afd6db1f3222ae939e22dad3. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/TCAIR2403529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9486d4951a64b173506af8bbc01fcafc353f8cfed656985f3065d08a31c3c5fe. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/TCAIN2491531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc4f8bb63743c957b7ccddf527da60471cdd5bca304566088721cd139c41e04c. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/TCAIL2499102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9486d4951a64b173506af8bbc01fcafc353f8cfed656985f3065d08a31c3c5fe. Chain 2 (Bitcoin): anchored in block 958086 (2026-07-15T02:55:47Z), 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/TCAIN2491531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1f4757c842feb26ae7c0eaaecab25d56420cb83e117bc078edeea057c91bbab. Chain 2 (Bitcoin): anchored in block 958415 (2026-07-17T12:50:13Z), 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/TCAIR2403686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd41c58483adc03170ee19c9dd85d10bd3bdbbfb1afd6db1f3222ae939e22dad3. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/TCAIR2403529.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa06caeae72526c89272e4468cd816b828768b1f0d0d3f90df463949aed5af525. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/TCAIS2405865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9486d4951a64b173506af8bbc01fcafc353f8cfed656985f3065d08a31c3c5fe. Chain 2 (Bitcoin): anchored in block 958501 (2026-07-18T05:33:04Z), 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/TCAIN2491531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aee2f5ae831b30f7e2399e43bf592b05a40814abea47b55859261daf03db56c. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/TCAIR2403905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1f4757c842feb26ae7c0eaaecab25d56420cb83e117bc078edeea057c91bbab. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/TCAIR2403686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9486d4951a64b173506af8bbc01fcafc353f8cfed656985f3065d08a31c3c5fe. Chain 2 (Bitcoin): anchored in block 958224 (2026-07-16T02:28:43Z), 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/TCAIN2491531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aee2f5ae831b30f7e2399e43bf592b05a40814abea47b55859261daf03db56c. Chain 2 (Bitcoin): anchored in block 958140 (2026-07-15T10:05:23Z), 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/TCAIR2403905.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa06caeae72526c89272e4468cd816b828768b1f0d0d3f90df463949aed5af525. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/TCAIS2405865.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcc4f8bb63743c957b7ccddf527da60471cdd5bca304566088721cd139c41e04c. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/TCAIL2499102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1f4757c842feb26ae7c0eaaecab25d56420cb83e117bc078edeea057c91bbab. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/TCAIR2403686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9486d4951a64b173506af8bbc01fcafc353f8cfed656985f3065d08a31c3c5fe. Chain 2 (Bitcoin): anchored in block 958765 (2026-07-19T18:01:47Z), 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/TCAIN2491531.