Llorca is a surname. Notable people with the surname include: José Pedro Pérez-Llorca (born 1940), Spanish politician Ricardo Llorca (born 1962), Spanish composer Rubén Torres Llorca (born 1957), Cub
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 0xae26fb990dc49fdf8d5e04ce0045c9be8d6c293bac4b53ff428c234e83cd65db. 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/273735c2-60bd-4d99-aead-5330921cba6f.json and https://artists.proofprofile.net/proofs/artist/273735c2-60bd-4d99-aead-5330921cba6f.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 0x1a9a94e74d9f7c9a36dc66c29f83666f03831e7aa96878a2aef9fba5bfd5f205. 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/FRV229800012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf9da4183f34835f23a8f0f55b52233c7c96c4cbe10a1163e36011ab30797754. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/FRV229800013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3eb80b3efe5a108309b3da101683b769cf1233361b6e187c700020d5d027d37. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/FRV229800014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x37dedd11349dff5383017eeb8e0bb864c11868b3042e1ea970a9b434bda8eb1c. 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/FRV220100012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x36558d0748811212bc6548e636a8d532f5c4051fd2fbf77709476539c314e0d2. 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/FRV220100013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07a14fe35a37f1de700ccfc8a6994ac95683d9ce7187f61e335cd9748139beac. 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/FRV220100014.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb936e027794b31a7f74522b675a5b08550054aa8423da3cbfd2fbb0a6084b51. 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/FRV220100015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11d12432ee5bfa4195fc4995a66b7026361a8fe98c7d5903df94e684052d2648. 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/FRV220100016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70d7078f9e1b0c8770f0d7538dd24b8bc39c4e8102d3037bc257a05e32f0ccbb. 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/FRV220100017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x906d32d48d1f5d78fd97b170a0ba9ce1cbbebec9b19f071be4a2694ebb7bdaf2. 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/FRV220100018.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x335d0ae23a983196b624ed67bdfb2c7f97d1551a4656c64d8d352a4a558b58c1. 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/FRV220100019.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11d990e578e42916503f00bfc5ab56aec7065c1c710525c6cf720d96d19ae37c. 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/FRV220100020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b45b5eb7a9ab18a17785dd7f9aff10fbb392942013a68a9e65ece95a218a9da. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), 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/FRV220100078.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc3a943d3237d7b2e955831f6095ea88a27474d6fb25bcfef634f04ba79f91170. Chain 2 (Bitcoin): anchored in block 958448 (2026-07-17T19:49:21Z), 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/FR9W11617039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa49790e39bddf34d34a8c3daa091b3798ba0f03639a3bb5324237c2a4b2032f0. Chain 2 (Bitcoin): anchored in block 957880 (2026-07-13T16:39:18Z), 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/FR9W11617040.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x49ea2bb3d83429b51516ea673d600ddbd169cb97e5e1f49c14d0d80bc72859f2. Chain 2 (Bitcoin): anchored in block 958180 (2026-07-15T20:40:04Z), 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/FR9W11617041.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c6670dbae4e886e87d8f0519ed699a5158f572f5c81de6fe0a1d1dbd839588e. Chain 2 (Bitcoin): anchored in block 958137 (2026-07-15T11:47:14Z), 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/FR9W11617043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfd7953a4acd4de10a3059fbc4af0dffce93a230fd0fcc00808559a0839a1c25a. 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/FR9W11618432.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa185a078fdfd0eee03fda7beca2c3a3ab00d2281f991c79eec3d41cf9a954869. Chain 2 (Bitcoin): anchored in block 958322 (2026-07-16T23:18:51Z), 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/FR9W11713049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb55c740cd0f2f2018ff3eae2a8fe0911bee7c6ba5d76876a78a42f50838fe0fb. 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/QMQ641970003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7ea3beb49ed217ef2e84d041be41bec5e4af871277e86911b916e35dc299a075. 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/FR9W11618431.