Los Rayos (The Rays) (2004) is the second album by Argentine singer-songwriter Vicentico from his solo career. The album received a Latin Grammy Award nomination for Best Singer-Songwriter Album. Tr
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 0x2fba4418a4c9d0ec07b10800ae901b1b667ea1ad0cee4c3388bac30a8f78c62e. 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/6f29d048-d329-42b5-b073-5f8bf13b0acf.json and https://artists.proofprofile.net/proofs/artist/6f29d048-d329-42b5-b073-5f8bf13b0acf.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 0x9730b67ccbcdb09d390c6133c55a4182c14b1a2799576ba305cf12953210ddae. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/QZPYN2489908.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6539ab40d6bee8858ea66508c7c91159588b50b3c3b4b1b0959601a75d2ebfbe. Chain 2 (Bitcoin): anchored in block 958728 (2026-07-19T12:24:55Z), 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/QZPYN2489912.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1d456b2e483bd077e2304b8ed318d3f5512e425274a5cd8080b4e540a4d4dff9. 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/QZPYN2489916.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a73314cf92ef75185d5d09d3ef75a87370742dcaa230e50fb8c32b79e012cec. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T00:01:46Z), 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/QZPYN2374686.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef1400de64722585236b3cf0ecd6ee1460235dbaf5486ff2123f33d90de84486. 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/QZPYN2374687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x360a87b937d4cd90bb7da92fff477e74e7d009d11ac716bb873a364e4fc394a5. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/QZPYN2374691.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe2f0b81bfabee474b56e9fe3083e125c084086922a75a068a7a046c60ba246a1. 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/QZPYN2374596.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83825f9ebc01e007fd1d68b3b2d4de197af0648af3ea59b01097816d763072cc. Chain 2 (Bitcoin): anchored in block 958455 (2026-07-17T21:28:36Z), 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/QZPYN2374598.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x76d6dada4d494c61c0ae246f159ea7562e1021e1c73b2f6306ed5da6963b9982. Chain 2 (Bitcoin): anchored in block 958738 (2026-07-19T13:10:36Z), 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/QZPYN2374600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00bc7e56e3913378cce551a51f0bad43d186986a5dbad6e3eb62262edf1c6922. 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/QZPYN2374601.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39dcb7ccf5d689ac18f032022b54956c3e8a5d6dac384d4eee61ba1b2db0796d. 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/QZPYN2374604.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d11cccc8b432ea252bd9a491158b40740201f9672ec606965c5040f1ddf20f6. Chain 2 (Bitcoin): anchored in block 958788 (2026-07-19T22:07:06Z), 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/QZTVM2148947.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x922c967abaaaa92860c83229b2a3deedcdb5a57be2ff7fd198c0e8cf0ac42e7d. 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/QZTVM2148950.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x519fed7ec70558a31494eb5bc2d403d1413bcf72aa186c6114386ac8938c6917. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), 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/QZTVM2148954.