Sergio Correa de la Cerda (born 12 May 1938) is a Chilean politician who served as deputy, and as mayor in his country. Early life and education He completed his primary education at Padres Frances
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 0x5c3d05aa47d258dbb2275c3aceb82c0f49f70b7bb974d36e871218e2064bd104. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/f2850f10-d825-4ff3-9036-c02873f660c8.json and https://artists.proofprofile.net/proofs/artist/f2850f10-d825-4ff3-9036-c02873f660c8.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 0x8e35c8c402a7bcd8fa7cd83071358292c316296d20cc45f0af58964293efca4f. 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/BRRPG1300020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb534f73d88bbf3f26a3642acf03393db0c9b5db18128b0aed407b4416bce2e58. Chain 2 (Bitcoin): anchored in block 959002 (2026-07-21T14:07:10Z), 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/BRRPG1300014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8cc33934b95178e66d2016ae9b503a56ceb907f5f972514e0eee95c3c1ee68d0. Chain 2 (Bitcoin): anchored in block 959015 (2026-07-21T16:22:33Z), 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/BRRPG1300013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x35ef47478c7346b7fc453ad69f34f21046dce661d0e6972291fecb917353e1c9. Chain 2 (Bitcoin): anchored in block 958286 (2026-07-16T12:43:37Z), 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/BRRPG1200140.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4a007cd747357b42b94bd6d386bb6bcdcc6e5a8382e1eaa827c581d56839d67d. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/BR6VQ1200003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd8846f7055c816ba9ac39b9eb66edc45988a1ab281700e089ec9ffb7469ea9c. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:58:27Z), 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/BR6VQ1200004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c2155c03b3dd60157f9c871a0d575c34ef15ff4daac8eca8fe1ef4b64eeb74b. 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/BR6VQ1200005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2b850cb8832e7e6800b135e0c35cfd6f85a4ef95ba17d1fb87033039ef393bb5. 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/BR6VQ1200007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d25cc69de5955d0571224985243a76222abb9ad19e4b8ea29c4324e878677c8. 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/BR6VQ1200008.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbdc45f51434f5e373f94eba7c81927ab8a2dd451c4c7f6df9e2fa1c637d9326b. 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/BR6VQ1200009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f68ff93ea69abc3052a40d9411ffe4651292af93fbe7520e324792736fa2531. 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/BRRPG1200139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8ed05926232d0a2605151cdb9962c2a9426a7dda9c26a422ad0dcf3db265ec9. Chain 2 (Bitcoin): anchored in block 958733 (2026-07-19T12:51:21Z), 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/BRRPG1400058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcf98917f29aa5b1f536ba4397f02d4d92e5f072dae1a98819cc30be3f89f5847. 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/BRRPG1400057.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb21069852003d429f8f0122c24ebc1a23b7082c36a913b2667e686182b4d1c10. 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/BRRPG1400063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85ffb3e9911109631412b9344b97c15843f7975a843aac70e16751e760623f30. Chain 2 (Bitcoin): anchored in block 958142 (2026-07-15T12:36:01Z), 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/BRPJ71900138.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe8e846ab6868974adda76941ee9a30b64c66e3b706868bbce6b05f068a6cc7ec. Chain 2 (Bitcoin): anchored in block 958654 (2026-07-19T03:55:30Z), 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/BRRPG1400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd27b74c181e542b6c38c7a9395d93df87b7d97d4cd7299205407621bec142cf5. 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/BRRPG1400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ed62c6b5f566c08fbe2c4f74d83f6afd2457f58b888cae2fc18d3c4a9f0bbb1. Chain 2 (Bitcoin): anchored in block 959010 (2026-07-21T15:45:53Z), 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/BRRPG1400018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44ddc1e75514e2accda79671dbf65b9111fb580a45ac853afef7f5349213ecf2. 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/BRPJ72501355.