Guardarraya is a barrio in the municipality of Patillas, Puerto Rico. Its population in 2010 was 1,603. History Guardarraya, located where the Cordillera Central mountains meet the Caribbean Sea, in
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 0x73e981ec9a20306a19749d655dcad0f7fb2de593aeecfef5252e70acbca08d6a. 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/eba0b744-1341-4814-9a50-16ebdbe5b725.json and https://artists.proofprofile.net/proofs/artist/eba0b744-1341-4814-9a50-16ebdbe5b725.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 0x2bbd87ba1ef32e522e3057eadb0b0904f7b54a96aff82654f642d4e5b3648460. Chain 2 (Bitcoin): anchored in block 959128 (2026-07-22T12:33:25Z), 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/USQY51107687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0554055fd4c0660182738940edca2a78205aec98c95da130c4bae09492b8a062. Chain 2 (Bitcoin): anchored in block 958656 (2026-07-19T04:04:08Z), 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/USQY51107692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0f63617c78f80150a12794f1bf535ea021ffbc65d0a58773e7932b9905b3505. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/USQY51107689.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3435b767513e60add9ae3b6d3766f35af54acdbad39add3dee0d798df4c2a8e. Chain 2 (Bitcoin): anchored in block 956822 (2026-07-05T18:48:28Z), 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/USQY51107690.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9de99006802d4a80a11be6bef2960b53974da8fb326e43deca68c6dc66802b41. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/USQY51107691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3c568a5e350281905949ca05d66e88b34f56c1796982e72beeb027af94894b7. Chain 2 (Bitcoin): anchored in block 959054 (2026-07-21T20:19:31Z), 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/USQY51107693.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaaf46a3476475457734fc27e33b369a337e3c498278b22cc94a85f499584a9be. Chain 2 (Bitcoin): anchored in block 957735 (2026-07-12T17:47:43Z), 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/USQY51046345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9602728eae30133d075b526e58d6bf4fc474e6655ac33df2efb12d05bfa6b357. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), 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/USQY51046349.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cbc2103e1467ed8516d435b3587346f839f2fac6e40cdf0a77274d81762d4dc. Chain 2 (Bitcoin): anchored in block 958063 (2026-07-14T21:07:34Z), 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/USQY51046351.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4cc34bc28c66279aff64399a0a63dd852f52af59e2c73cb9d72e819f7cdb304. Chain 2 (Bitcoin): anchored in block 958256 (2026-07-16T07:22:18Z), 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/USQY51046353.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x15e30ce1ee34d97333ff429f5fb923999392f5aca165fe86f17efaef80f0a8d9. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USQY51046342.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x392153fe30a7942de6af5e841cdef3ff4c92be0a54cbf2d459e455ca58d3bb1d. Chain 2 (Bitcoin): anchored in block 958115 (2026-07-15T07:27:09Z), 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/USQY51046343.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd8b86dca039da1fae89b72fcee57b400a7c7189eeeb0a9c9ab122b9a3a8f70ed. Chain 2 (Bitcoin): anchored in block 958668 (2026-07-19T05:16:11Z), 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/USQY51046348.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62a5a4362a93cec83a143da5b2077db0c3ddb07ecd6b9f80707a0c2c88e5fe89. 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/USQY51046350.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd73752538bec366c1082a2bd09563d831740504c300c4e600f1c40be2c6f311d. Chain 2 (Bitcoin): anchored in block 958211 (2026-07-15T23:24:33Z), 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/ES71G1739130.
Malas Influencias (Remixes y Reversiones)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f63ee9bbbbc079eca4c4c28b3f7d06fd0f04b1fed8ae35fafbb8310187df614. 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/ECA131200105.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95d10e569643e9fea90c19ba70b8046aecb10f4dcdab5adb7984f3e0ba63e455. 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/GBMA21987462.