Eduardo Jesús Vargas Rojas (; born 20 November 1989) is a Chilean professional footballer who plays as a forward for Chilean Primera División club Universidad de Chile. Emerging as a top talent at Co
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 0x45feccd3f3859c9a98664fa711434a274a69ef074dae41abcf3c52f98231f759. 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/2801ed6b-ccdd-4ccc-8bcc-0eaeedff36a0.json and https://artists.proofprofile.net/proofs/artist/2801ed6b-ccdd-4ccc-8bcc-0eaeedff36a0.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 0x3fa122034cd615f213319f76990e373bfab196473f38e74c57904754b65ef58f. 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/CA5KR2334069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1845cdf699b6e634fb3f89eeceb7037d9192f35cf8108051fe8ac7b5abb8899f. Chain 2 (Bitcoin): anchored in block 959073 (2026-07-21T23:25:37Z), 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/ITLCJ2100595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41f78acaf333d932392219bb50121d479034551fd9540827cb2a457a500e4841. 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/CA5KR2471242.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x899698ac83191f1b4ff5e3ffc6d33fcb0cfac3704071d4fee8edb9dbeb8d16b2. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZG2X2419317.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67719707f3cd5866b454854dd1bbf3b6f4fbc1a1e2b1f50248f4dc6247b30cd1. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/QZG2X2419391.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x21d43e3bac55085be6340fb4738e1da438c0320d3d38282d884c150f9037e937. Chain 2 (Bitcoin): anchored in block 959105 (2026-07-22T06:33:30Z), 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/QZG2X2421050.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1282ec99f47d0e79b1d13d6e0b1601fff5c510c2d192e93ab3572fce62b2022c. Chain 2 (Bitcoin): anchored in block 957785 (2026-07-13T01:55:31Z), 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/QZG2X2420185.
Peppe Citarella Essential "AfroLatinHouse" 2022
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e38e846bd1905d321097ee3d7c180fa082f0396b6612ada1b4fba2f7e59ff65. 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/ITLCJ2100169.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3bf11cb144c3c700d51f5856cb5c58981054dd83f41f0a7a2f625e53e3b03ae5. 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/ITLCJ2100356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f49e35247aae5461d49e4daf0d570ecd66a441df19526122b1808bf86e62af9. Chain 2 (Bitcoin): anchored in block 960478 (2026-07-31T23:30:38Z), 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/DEH742040164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfe63abe18b1560eaa53a70a169c3f90b2ac273b1fe58474f8bf7d55871b0987b. 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/CA5KR2407938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x788d7fc7cd867b710d24ba40530ba6587cca636c18b8976f1d824d06de121a8e. Chain 2 (Bitcoin): anchored in block 960334 (2026-07-31T02:19:15Z), 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/CA5KR2407939.