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 0x021d1393cd1e10d700922c1295f6ecd451f03039a3521def019ed19756c7d388. 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/6d4a5bf0-d468-4a34-865c-22407f460b7e.json and https://artists.proofprofile.net/proofs/artist/6d4a5bf0-d468-4a34-865c-22407f460b7e.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Diego Sanchez (feat. Kojot) [with TMK Beatz]
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 0x0a4e6e2fcf194a0125acc33cb00733f85962d47ea4c7dac83a3e6c4204dc02b8. 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/PLI361807000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x411291c3654bd8c254c603f266b4a1dbc05daf30c99e7bfc54c7c00291cd1f61. 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/PLI361806940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x14d267526170c7eba5773220a25c8dbfc2bec25f9ac2fb6b9b91061e3ffeb74c. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/PLI361806910.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x383e90184f6ddedc150fbe06fecc2618eb3f90520a3ab2ed85b01922da177af3. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/PLI361806930.
Wiń siebie (feat. Uszer zDP, Kiju, Penx) [with TMK Beatz]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x679eba9cdee331a7fa1096bbb13a3a96251aefd9586ac02f8c92e6dbcea0f6c9. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/PLI361806960.
Katiusza (feat. Bazi, Zygson) [with TMK Beatz]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb390aab023d7c62842910cbe6c6635047251cdc7d518edd2e6fc51f4b3451f1. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/PLI361806970.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3a43588e8102345247cddf1c1ab68c32a98f4e607e0a1dde968cf125a319c97. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/PLA552200791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2703741634a39cfffafb4d969263d3c8baad6e7ee2c30750f4fd38ee61b1b8f6. 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/PLI361808520.
Daj mandata (feat. Wysoki Lot, TMK Beatz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x513a091d473ec9cae5a8fdf1ff12eb7042d5858e7a3687e32a97879fe3e33b7f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/PLI364399510.
Yabba-Dabba-Doo! (feat. Uszer, TMK Beatz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdb3fcb544f570385a73997639ae874805c48867e8d949f8c0aedd1cddc68932. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), 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/PLI364399520.
Plan ucieczki (feat. Świnia, DJ Danek, TMK Beatz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7faaf4ca09966d34979fb23f9df641900ef789fa261e44b6e04ed8591040be0f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/PLI364399550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fd3a23d999413548f4b7c52dde2d56bf938c0a63b065eb5831c731a332b0a85. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/PLI364399580.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf9ee3e4cf3624ccb644ac0f90102de4fd40828a1c6ac0c31a2b6f0f2815c6b8e. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/PLI364399600.
Śpiewam i nie myślę o chorobie (feat. Delekta, TMK Beatz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6af87c9d3b2bf7e87cfdc8fac3551025648025ef5cc2aa31bef22bf43fea3847. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/PLI364399620.
Co Cię boli (feat. Hase, DJ Danek, TMK Beatz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xedc1be9e580d4c096ba85876350a26b87cdb395eb2155e409fdd639090fad19c. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), 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/PLI364399630.
Życie poj**ane jak telenowela (feat. Quebonafide, TMK Beatz)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf97cd9f89ad69ab63cac86a5f2cf24335d2d3caf1cb92fc32e87f5c62a2285bb. 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/PLI364399640.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc39879effa55b880eeca317e8b2ed29d2662353694f74e5773d5b622a37076e3. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/PLI364400500.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x240b381a31c84a2598fc2491453ce8503e44e6cf2a7c20924f470e0f58cb0d76. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), 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/PLI364400490.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24d3075b26aa7a27dd58fdf9c86d838fc8d39fd10c985449a74022cd804fb189. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), 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/PLI364400520.