Héctor Guerra Garcia (born 6 August 1978 in Madrid) is a Spanish former professional road cyclist and triathlete. Major results 2002 2nd Overall Vuelta Ciclista a León 6th Clásica a los Puertos 20
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 0xdb0d07dbb5073eb9dd9efdd507eb44a255d03ee79654aa4aefedd5b75aef3955. 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/a9b3d839-703d-4bdc-bd61-3542e685571f.json and https://artists.proofprofile.net/proofs/artist/a9b3d839-703d-4bdc-bd61-3542e685571f.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 0xc0eeca3acd60b1defa48ec70c1119761b63ad41eaf60e7ecf0ca06258a6900b7. 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/QZ5AB1819127.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbf970e6f831844f1d253476d8cec7b1c548e7bfcb4dd94e5b86fe80ddbf8f2a2. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/US7VG1530152.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3cf55dae58a565f0858af3651c69fa1b16020d515aa9649638fbb509ee715ef9. Chain 2 (Bitcoin): anchored in block 958268 (2026-07-16T08:56:51Z), 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/QZ5AB1819131.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5bb2d04523494e2399cbe9a49a50f0131aec93496c08209108f01b6f6f01e49. Chain 2 (Bitcoin): anchored in block 958686 (2026-07-19T06:43:29Z), 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/GBLFP2173579.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5d8c8e8ea466c300284c476b44f847c4c0812ed44b8aff93a889964398af71a. 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/UKXN22188704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87809d71fae92ec470ef1891ae20d310c34ba38357c3c8caf077506d68a2ed1f. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBLFP2028160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fc734df466e8aabde9268534338f19afb984cfefa6f8d95d8098cad8a83b1cb. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/UKXN22188722.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa2b4b1281b54266741e9d5a9e2381203094a1e8e985e10bf6ede99ab7abfc298. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/UKXN22188724.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ed5a059fb78c15ec1e3468e98b0747e658ba63c3e67f9b584f90e76c98d36cb. 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/UKXN22153315.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe5971a8cd22a6f75367bed2d0cffc4ef357a21a25c880bb11cc252ce9a8ad90b. 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/UKXN22188728.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7cbbeeb26c8f31e1545433f506c2f69dfdf3f7b769915345c970b6e70660506. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/UKXN22188737.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc98732159cf84003e5a3f3cda4fe1adeaaaefc3095df3b2549cee9afbb52bfc0. Chain 2 (Bitcoin): anchored in block 958504 (2026-07-18T05:41:32Z), 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/GX53U2061165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb378defb9b9fadc0d254a98f1cddfdaa1ca10ca929deed0a522f1a146d0ed516. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/GBLFP2454152.
La Ciudad Que Habita En Mi (Urban Version)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f9bb8a5b9a59e6b3bdd2acd26a4805454b3e23b886457fc2c3781411bee5dc3. 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/QZHN52065198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90f0ae6a6093facb4564ab4088af7ffece9a3b5eeb1e0bec8292acd969640557. 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/GBLFP2068616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74be6448c55527f9dde7a2d9def81544b2914f6fbda90a069165385cd36054f0. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBLFP2465162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa52375918ff8a25fa66a1e6bdd441977921ec84544a146f1e46d1b99b947a4fd. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/GBLFP2224823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90f0ae6a6093facb4564ab4088af7ffece9a3b5eeb1e0bec8292acd969640557. 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/GBLFP2068616.