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 0x5a645f02f17b19d79bc895ba7105db199ee26bd4b993acbdfb5c0d299add0305. 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/934aad3b-1900-42e0-8548-9c17f656b8ca.json and https://artists.proofprofile.net/proofs/artist/934aad3b-1900-42e0-8548-9c17f656b8ca.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 0xbbfaf5dde43b41fba164133f719c6a9d85a1de2eb826232c5eb7259fe9f77768. Chain 2 (Bitcoin): anchored in block 958832 (2026-07-20T08:31:44Z), 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/ES6672003692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x604f2fb619085bc8fcc83dda52e4a7580741dcd3fda41328604e2a407c792721. Chain 2 (Bitcoin): anchored in block 956551 (2026-07-03T21:18:05Z), 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/ES6672003611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5371a94e7d884685d0ab7d9079d47d03f83dc8df35554384c8b25c64fe71be99. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/ES6672004083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbbfaf5dde43b41fba164133f719c6a9d85a1de2eb826232c5eb7259fe9f77768. Chain 2 (Bitcoin): anchored in block 957827 (2026-07-13T08:59:54Z), 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/ES6672003692.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x604f2fb619085bc8fcc83dda52e4a7580741dcd3fda41328604e2a407c792721. 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/ES6672003611.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5371a94e7d884685d0ab7d9079d47d03f83dc8df35554384c8b25c64fe71be99. Chain 2 (Bitcoin): anchored in block 957872 (2026-07-13T15:39:45Z), 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/ES6672004083.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x171e60f95b2c1d3d88c17a7693b6ee3c4bbf15697e6efc7dbf4066c8fbbdae25. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/ES6672004085.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf983a5f4dbca6f3b5ab8b5089291bee6f2be1f8209644c5cf014acd620501706. 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/ES6672004088.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3076c10dfbf0a4ed1303babc24724f29aed6ad94fffd1dfde51c87d4f16b307f. Chain 2 (Bitcoin): anchored in block 958176 (2026-07-15T17:14:36Z), 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/ES6672004090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b5182264027badcff51e904bccbb77539ec92c6f997422bca63da834b39bea8. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ES6672104673.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa539c22ffd33d3ae8921744304531364d55cf4fa313de81c998071dfe935b650. Chain 2 (Bitcoin): anchored in block 958462 (2026-07-17T23:17:53Z), 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/ZZOPM2236024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc28e6915fd49295b523e04b3bacea9fa60800dbe6eac2d75da452ad25a175e63. 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/ES71G2420499.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9607af5bd2a398db01c6a79951c43c239735a8fc84c98dd9dada7e022c8b0069. 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/ES71G2425818.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x930ea7dcb918153662211027b93fc68a08588d9cee4aa8dd9960b22966d73c66. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/ES71G2430531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c4b71e63899bdea4906b4d6bc33ff54260c2cacd4085916281939ce3bf24c04. Chain 2 (Bitcoin): anchored in block 953515 (2026-06-13T12:53:06Z), 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/USSD12400242.
Aire y mar (feat. Sayflhak, Elena Vargas e Ibra Rey)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x707ba1686e999de08a94c47b90844ec362e4a1aebcc6c22bc4cf653925a6a54c. 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/ES5151503727.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6450d2554f1170fa7c56a53f3378ec9e4dd1fd7a99a1c6634c582159e6e6b3ec. 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/ES5151503730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e47e929f8dbe43e675073163535281d9ce35fc27844c96175836ba4ce674884. 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/ES6672003621.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6450d2554f1170fa7c56a53f3378ec9e4dd1fd7a99a1c6634c582159e6e6b3ec. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ES5151503730.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32c1325320389dbadeb2f1009762c147a0f0e9f3fcf1d77cf27a5f51999aa530. 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/ES7731902043.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd1f9d2bb89852a122fb6490cce47e9b665619d6bd153209f2fbfacc3fe50df91. 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/ES7731902049.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c4b71e63899bdea4906b4d6bc33ff54260c2cacd4085916281939ce3bf24c04. 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/USSD12400242.