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 0x0f0e4b80d2dcc3890230da180940320c201dd65ed3a28997053bc811dc3077a1. 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/09dc83dd-dde5-4663-b4fc-e9c063e619c8.json and https://artists.proofprofile.net/proofs/artist/09dc83dd-dde5-4663-b4fc-e9c063e619c8.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 0x4d07fc482eba47cf2c357c04b30752e036b03125e618b2d28bbd678c18f1e81c. 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/ES71G1760081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0267f5b29d78f03ae8ca9faf26b550c5466962616d723e6d5a41335a9667fc35. 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/ES71G1908570.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x17e1dc7dbc14fdf3251c504d1a36efa54ddf6cb86345c2ec7cac6150e6500fda. 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/FR2X41400306.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x674682b289d8747e4c21fee00b850d514c076f662bafc96c73747fa23d0b6109. 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/FR2X41601682.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd58bb7c57c4166f3d32b96c74789c148f88d688b7762ee40112a21c017e4962b. 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/FR59R1620997.
Los Salieris de Charly (Con el Miedo No Nos Van a Vencer)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84e0ed8d7211870b9a85c686eb6a4a3f832ef86097c70c60dae16e91d7993e1a. 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/ES71G2153594.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff1e978d1aa6257bd5f4456c73e4e2f8db1b1213199e06aacb44f46e885b5d28. 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/ES71G2025636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x678ed216561109d9e0d777b49b1f610801f37d99d6d0e1e4d99172e933f05b7c. 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/ES71G2000281.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x99ce3bc61511a41dd8e73b897107b147634ef4ff3fa438e8f7ad737d2f1df285. 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/ES71G1934322.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x661aafa1ccdfeae80858c9dc2ce7518cde6d82adac951d8f8ef4c272ee87d7ba. 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/ES71G1941326.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x164b0536f0d49461f3e899c5e3a4e1eb08f194cb152107690c7a2bf074c48ce8. 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/ES71G2010335.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xff0187c3a6eb8ae7b2e9615ca3a2c2bd65c5c7c3edb4e95d65ae43d787fc4e33. 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/ES71G2025641.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8aa0e7d6f876b39c7b9711b88dd15a53a24f7985a1a2a9ce6687e2d72d3d5345. 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/ES71G2023745.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7963cdea245f31924f1b1450bdc228180adb1cb9946d1d4519671b011fedfcfc. 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/ES71G1904418.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad32c4bcb9cc26342efab181376ddf8da7cf167b60ac7aea662291f852f89599. 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/ES71G1871161.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x060544c8c0c206a243094ac9aba1d1596f8eef42e2956089b5e3bb8909310e73. 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/ES71G1871162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1b40c9619f992e1760b18a0ef9c23c0641f026067cf59585e14dafab0591db5. 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/ES71G1856453.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xae72a54b7e027def3fe455eb47bb9bd3c653fc43c5d8e8b90d6be45be40689f5. 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/ES71G1871164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4a2b407703162b1749203a7bfa4dad0a662c1c9b5877e9f2ddcfc297f8ce7fe. 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/ES71G1871165.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16e6b9400189ea49e9e813df413bbbc0f856bd6ff921f702cb97c5a86334b246. 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/ES71G1871166.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x813f85a14c65ad8563fb622c712dadcd62074da45e4ec6e12055875acfaedb47. 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/ES71G1871168.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x62dd7978c159957a5c247bde4a95638e3bc5945590b14352fe4154dd4b5a8ed5. 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/ES71G1871171.
Hazlo Como Hombre (Banda Sonora Original de la Película)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x979178923a7f4882a02495ccf432f24e5a741481ceaa90f0fcd094e9dd3401cc. 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/FR96X1732313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xacc2b6172da38d8b7cc29c4f0d5d63ab11386ceb4e59a2bc20987ae1d186b117. 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/FR96X1732321.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef8c2d5d7625fe220fbe7616759cb62826fab0d550ff09e6163ee3341ddc8262. 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/CLKT22103664.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbae76466684c9f4747432a7697f7e59a1977d03484e43409116ce3a011b9b391. 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/ES71G2027224.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd67de29998f6b1370bc7cd78dfb1cf49665ab038df8fd02300a90e5e6381b977. 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/ES71G2211439.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5065396d9c34b987ccc6337f45b1042021688f3b5275b60fe46de837fc357299. 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/ES71G2042034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5997bd8923152ae59ef72f3619ace89b2a9d15afce40f3644ad9dd21d0b913a. 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/ES71G2042039.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd88e013ece987f79d38d96b7d0791cea1272146a2ebcce98b23365d8ea504b4. 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/ES71G2041030.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcb3e3b828e7b407557f2567d68f2e1efcce92f420138ea45fb6270d3b08c77f. 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/ES71G2045608.
Una Mujer Sin Filtro (Banda Sonora Original de la Película)
La Fuerza del Amor (Versión Premios Pulsar 2020)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef8c2d5d7625fe220fbe7616759cb62826fab0d550ff09e6163ee3341ddc8262. 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/CLKT22103664.