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 0xa69a3bde0135cb552532101773a95aa2fc8d23060984246e755222840e174a19. Chain 2 (Bitcoin): anchored in block 953660 (2026-06-14T17:20:01Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/53e411fe-bcde-4fa3-a8f9-f6174e740fc2.json and https://artists.proofprofile.net/proofs/artist/53e411fe-bcde-4fa3-a8f9-f6174e740fc2.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Besar el Cielo (feat. Robert Taylor) - Single
Es Mejor Que Sea Así (feat. Anddy Caicedo)
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 0xdf7e63ce955799a0743e2260872bd284f90ac7fc8129a94612649a16fdca3522. Chain 2 (Bitcoin): anchored in block 958838 (2026-07-20T07:01:21Z), 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/FR26V2069930.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc79122546aab270052f845ec6c20169b6efa9e90de1a9dd587cbeb1e999a6a7e. Chain 2 (Bitcoin): anchored in block 958644 (2026-07-19T02:21:25Z), 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/TCAGE2224716.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0fa6a180a3376dea5e39319ae13476ab24678a8b19eb412c1018cb6217557033. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T21:05:52Z), 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/TCAGJ2227958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd12b6ee7b976723702f2d8aceb1665bc6bb8bc034870cd3e6df2a87c1eeeabf3. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/TCAIY2452371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7cf7818f4844cc09ba57ba8cd1af5894bedec6d891135d2f488e35453e8d9197. Chain 2 (Bitcoin): anchored in block 958846 (2026-07-20T08:14:15Z), 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/TCAIY2452616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c8861dd8000d560387d94617b93f5f1ae46d911d3cc0c2be24e93508d7fa520. Chain 2 (Bitcoin): anchored in block 959058 (2026-07-21T21:09:36Z), 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/TCAIY2452846.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a7fea1bc33c5e30c84cdce595698dbd0b858648c99b37e16c939533f474c61a. 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/TCAIY2454309.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3ce0ffb9944d5e139d61589065a0d6bd6fa88815a653d8a0854889e171f18879. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/TCAIY2455738.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeff0a160de6a0839da59bbd192f972e63a366938d21e0073e11c6f5251f8cdd1. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), 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/TCAJN2572298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d63867d9159f3674270c23f492eb88b5c51a77700b3735497abd6b7d225daca. Chain 2 (Bitcoin): anchored in block 958166 (2026-07-15T15:55:19Z), 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/TCAJP2527700.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeff0a160de6a0839da59bbd192f972e63a366938d21e0073e11c6f5251f8cdd1. Chain 2 (Bitcoin): anchored in block 958373 (2026-07-17T06:09:33Z), 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/TCAJN2572298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a033fb4bee60e0eaffcb106c185694303516dd7377a624da0478644940c6d77. 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/QT65W2539025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ec31d39a3a6fc584ddc34f7abb54599624a5d6057b18417a8509e94507209bf. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), 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/TCABZ1472150.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3271ed3c5c42823f96ec4a91788db74961e49f9745a70c34837a99ed6d546970. Chain 2 (Bitcoin): anchored in block 960220 (2026-07-30T07:28:30Z), 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/ES5991400603.