Eduardo Antonio (born December 10, 1969) is a Cuban singer, actor and producer. His songs have served as a soundtrack, presentation and closing theme for soap operas and films such as Preciosa, Alma r
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 0xdb5cd78cb6879ea9369019aa05674dd09ed2f86fad6c31817bc053833a5d471a. 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/6ac780d4-7080-425f-810b-e69af8ccfd71.json and https://artists.proofprofile.net/proofs/artist/6ac780d4-7080-425f-810b-e69af8ccfd71.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 0xcdbd0b42523fd89ba6a5216a315d7fa8dad4d8be148ecc45e5b67b7b6b47b312. Chain 2 (Bitcoin): anchored in block 958461 (2026-07-17T23:18:11Z), 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/CANG71500071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbeede3422b9d87627fffad0cc1a3336e2d46199d014f3da2102deca5019f36a. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/CANG71500073.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cb8f445ae260f7a60cc911bc253349d474496083eb14c3579cd0b9705873145. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/CANG71500075.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa400d2ef3c2eba4f862ba96851889d53150d1ae25081e16c33045729184929f3. 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/CANG72200031.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c179a6c06c386e0891ef173ef04fa00db5175002feef66eb42ceec10cc29379. 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/CANG72300006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01c762d26d46c1f12d735ad665a9cf7b702d0e5e81f6906c7480fcb113c66c19. Chain 2 (Bitcoin): anchored in block 958812 (2026-07-20T03:24:09Z), 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/CANG72500006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13b9180aa06c2bf7741f62eaba5b027af0205e1854ecba023135c50985e556fb. 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/CANG71900034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x389db0c96530b98b50bf9fefd68e9617c210560aa8f7c8bc7d5e657c3fd44287. 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/QZK6P2442028.