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 0x89d3ec8bb2ef4858df968e71737e4cc2db77dab81352ce0fb18fccaf1023c644. 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/2c55af82-5100-4087-84ac-e788c35e8621.json and https://artists.proofprofile.net/proofs/artist/2c55af82-5100-4087-84ac-e788c35e8621.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 0x7de7acdf0832835b8e5971ee93e692e3eec9184d08d707fe789a333bf5479e9b. 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/ES5702200465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa4946e28054b61c76584bc0d81f27e796b396dadb0282a45a879c38ce0f3461d. 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/ES5702202146.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14787adc089ad3c2b920c2f37b072dcc41eb064b2cf6bcafd51ca1d1337eda1e. 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/ES75E2304569.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7682cba392a90b98ba9313117dda279f45c3350a7e68a39e1112a45766462eab. 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/ZZOPM2238116.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2a5dfd476c138da9d12766c2cfd6c6f74a68acdb2c2fd82ba6f054ddfdb0b4b7. 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/ZZOPM2228016.
Cayó La Noche (feat. Cruz Cafuné, Abhir Hathi, Bejo, EL IMA) [Remix]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe36e8b6b4bcdafca7e6622730adb05c76e3fa18df48d5e91d3e1997c5759c13d. 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/ES5152101308.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6230bb718ad197397aabd36860160cffa0baeed14af81ebea6abe4e7eb4627a7. 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/QZK6Q2198958.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a3888bb5cb773e50fe8a7ef5612efec6217d2b95345231a69ed108a0b0c4ebe. 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/SE5752148237.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9fe84ca5b04710e5495e63c26241e848cfd9179c7f9f8fba4f54c68fcd833c5a. 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/BK4DA2319181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c9e25d8dd0b24837ea40f070009a88c2cc52293f8532491dd1291475859fc79. 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/BK4DA2301634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa91eff6dd19add25b08c67f2b30a71efda7c4584aacab803b91f4ecf89ef5dc5. 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/QM7282425156.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1545f194dae69a6f19c03363dc258d7b8308579776ad9fd8376250a00619f406. 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/QM7282425172.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a47366e56fad82cc31535ef20856ad418e7bd5a6868bc2fd32455f8dad05fe2. 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/QM4TX2486966.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c9e25d8dd0b24837ea40f070009a88c2cc52293f8532491dd1291475859fc79. 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/BK4DA2301634.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb069b3eedca4df41f89ce4b23754f824a815f601c7e9080cace4a449c58e346. 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/SE5BU2299798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2861d6d0bd722e4b789efb72218b69bbc5c52f00e80819fcac222767aba20cc8. 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/QZTAT2105558.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f5760ffe945a12c5ef304c90537796e3cb455e1a2c4cf837d4aa1753d969ada. 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/SE6TI2180032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50e87d7d580609f1aea1b26be5d98f01e7f39bd0aeb912537034984620dc1d15. 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/QZHN42158265.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x46b376f91b66f4138bcc2778a1d46f6fa1efb281dcaf5f7681eaa371645c0ce7. 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/QZMEM2065900.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01ee872024083a7a0514590f2e529d815329800fe819b11ae68d6c54d550ac69. 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/QM4TW2397107.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x01ee872024083a7a0514590f2e529d815329800fe819b11ae68d6c54d550ac69. 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/QM4TW2397107.