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 0xda1623c2ecc94eda7eb6a6716e4a24fe291d07e1d9409b0b54c060885bf5cea9. 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/37bedd6f-1ff5-45d3-ade7-df67f4ddd48a.json and https://artists.proofprofile.net/proofs/artist/37bedd6f-1ff5-45d3-ade7-df67f4ddd48a.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 0x971b1e3f3c8087fa47918aa158c3bd5d01e1ed8fd3dffd1d0a90c2dbb1947f59. 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/QZ7R41850630.
Levanta Tu Bandera (feat. Yessie, Danny Marin, Mr. Fer)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a3b662b34f611e884eb5dd7366ccece27eebf80e2089b7840007ce78090ed75. 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/QZ5FN2084406.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59e989230a0268a69b66e8c805850314047b0d67112d3a9c3b69ecb087f2d950. 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/GBWUL1954232.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb7d248a3adb16e6ee9ba596df3932d6a28b8e72d23c9c4a661b46318cfaf0bd. 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/GBWUL2017631.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x09c1b83393359c707a4051911851ffed9916f8b872fa700524354919e6ff5f86. 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/GBWUL2047461.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcbc92f61717e389aa3a8c21b390815b661a1022e440fa97c93a806555740f90. 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/QZ5FN2003572.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf3b067b4edf2ca234b544931bc423262a8106343bd75c4be7636e14c08d9710d. 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/USX9P1354518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x224542df7f11f0d02f034eb46903a8aab770367141ce85eec46e21e97e4c1847. 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/USX9P1354525.
Ready 2 Go (Remix) [feat. Dyland & Lenny]
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x07dfd50b4ca09c8ddf926e7709ebca0927a46da38e5de665140f0bede0dc3657. 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/USX9P1354528.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a53ce016f3a743dbdbed837e3a4590978d9df58a35660a2fa0f6f082d481a51. 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/USX9P2490032.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9de0b11c3d48bf4b7f90d1235874638cffc6b57adf8c0616ebd159fb9e9de1ff. 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/USL4Q2454531.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10e3099d39a4f04e7bc62c8582a9a9b684f159ec101fa38c522ec44b4a7a66b7. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/USHM82425653.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7bc3d84c08d6c14594d550186537a3b6ab65b6cb31014a546dbc1bae972070a. 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/BK4DA2301914.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f3cb249d51b4dd5241661c8bc6c89e159907b687d71787f65d2a3e33426aa82. 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/USL4Q2269595.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cd4a3224d3bdcfdb14dfac66bbcfa78f6f53e17818028621077bed788860feb. 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/QZ7R41950505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3569b45a102133e615596fe54ae341e93a6d310e611dab1df67c860fa69dee9. 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/QZ7R41851975.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa03419085765e39d509c3df84fd9f281c6a6e06aa73c822d58dd83446726e92a. 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/QZ7R41852919.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b1e74dea94dee6d4c927bb14991f006df52b96d17e95cfd0d307ed4ec07f305. 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/QZ7R41850144.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c02f78dd6fa2042153e2aad15074b7fa8a3ed5e7bdd277186871ad6a4f81ce3. 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/USHM91770924.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x659d24404b761f0253963e45838a73be7c6be246a90ff450e5861c1d5aa5b817. 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/QM9WM1700017.
Piloteando la Nave Remix (feat. Jaycob Duque)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfcba829cda2d5f420614a00c45de75934f8e2b27b979fb52a870423a3ad62b5d. 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/USLZJ1772589.
Buena Vibra (feat. Ale Puga, Yessie, Sunday Funday, Pedro Cuevas, Hancer, Stephanie Zelaya)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b8f9afd683478f36281841d7a85b63cc24841283f7b1ab324625fe7d26c86d9. 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/QZ7R41951855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x140b46d46422928cb02f68b6ea8b890696dd95948d41c0c6eaafabcceee706c0. 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/GTA111900021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1f626c89d1e0fd3b108036fa43bf7721ac53dd15813f508428cbd52d357d6f4f. 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/TCABR1396955.