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 0x73d0ad75befa101f2c1c61918c193955f99e462cd448f6d02120565481be9278. 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/94800066-6e8b-4d06-b438-e3f17f062f4b.json and https://artists.proofprofile.net/proofs/artist/94800066-6e8b-4d06-b438-e3f17f062f4b.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 0x162ea528d10c786b7e042d01c16ef6178085db9262e459dbe518c5051b3e8aae. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/PYC842500851.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xef74559ea0d5a924eff52612a35aca1e7248d4604acab1f0cb351fa360fc7ebc. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T03:14:08Z), 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/QM6DC1665934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9cb65a491ecdbcb8b5ae8349888c9362e452c9a80942f734e2adb930b2f7b11. Chain 2 (Bitcoin): anchored in block 956476 (2026-07-03T09:04:44Z), 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/QM6DC1665936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10cea9fd8c196005f52d022615569e593983f7b3b1a9bf59212273f6178e1ac5. Chain 2 (Bitcoin): anchored in block 957771 (2026-07-12T23:27:28Z), 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/MXF169100063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x484b4674964832639c4d6b2aa3d76312e8a90555b5e828c122b6be975b6ce6ac. Chain 2 (Bitcoin): anchored in block 958377 (2026-07-17T08:43:33Z), 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/MXF169200059.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c7f7e09e54fadd9d31bf19ec36de78d75957e6049c367885b492ce1cd470b76. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/MXF169100064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2febd3f609f5cc8d5d44f745d5ee26a6fa42326169d382a6366072efa2d02928. 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/MXF169100058.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd42f6a5b9b665497eccfad3bf33d8209bee946baac85cde39afca50dd32ab942. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/MXF169200070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5b21214f8cd0b6252f3b95d0f64fe1779eb74dcb029300b6ff3f954aaa96e397. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/MXF169100069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1ec42cd90b0632cc4d1370740df24bbcf3870d61c95d86d600c69455aabf8573. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/MXF169200062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x227658d18d7dc2b7c2dd94d6aa861455a3a034ac445792f576d343c5c639ece8. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T11:23:59Z), 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/MXF169100081.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4b0e4725bfbebde9596c8bbbd3c4375bde501a5e0a475da310100f007d40e3e. Chain 2 (Bitcoin): anchored in block 958238 (2026-07-16T06:50:04Z), 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/MXF169100059.
Lo Romántico (Colección de Cristal Vol. 1)
Mi Chica Ciega (Colección de Cristal Vol. 3)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86bf302e4c51af31a864416fee4d3b40634bfeba398574fba72a66ae9e43dff5. Chain 2 (Bitcoin): anchored in block 956440 (2026-07-03T04:03:57Z), 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/USJ3V1328518.
Rock & Roll en Versión Cumbia (Colección de Cristal Vol. 4)
Como Amigas (Colección de Cristal Vol. 5)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1e9b39eb3f1dab50e1e3c26e21460cc3f9f8cb35ba786a6616b6e17a9a11630d. Chain 2 (Bitcoin): anchored in block 958300 (2026-07-16T16:14:30Z), 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/USJ3V1329954.
Pato a la Olla (Colección de Cristal Vol. 9)
El Aguacero (Colección de Cristal Vol. 6)
Triste Final (Colección de Cristal Vol. 7)
La Quinceañera (Colección de Cristal Vol. 2)
Siempre Te Amaré (Colección de Cristal Vol. 8)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5e67ea501478935da5c2b94093c9af74c5e9ccca99894f4e6da1ed3cc71d889f. 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/USJ3V1328510.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x86bf302e4c51af31a864416fee4d3b40634bfeba398574fba72a66ae9e43dff5. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/USJ3V1328518.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc48a20f6ff5378a8d8b79db2151998b2a633726bfb339b036a7ee0f41bb34f89. Chain 2 (Bitcoin): anchored in block 958977 (2026-07-21T08:53:06Z), 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/QM6DC1665940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf2292957cb14d3e66fc6a3177bea9623bff26e6c4990f7100d9da9f42143345d. Chain 2 (Bitcoin): anchored in block 958157 (2026-07-15T15:18:07Z), 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/CH6542078907.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0a0f3b2783c143e31954a9084329000e49bc67ebb714cb46997e7016e75da868. Chain 2 (Bitcoin): anchored in block 958480 (2026-07-18T02:58:58Z), 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/MXD481810072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x61cfe8c3d7e6db005630d073c80943b7258c689fbdf3b3a2af3f69e6bc44c91a. Chain 2 (Bitcoin): anchored in block 958079 (2026-07-15T00:21:05Z), 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/USJ3V2385550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1847e660cd21cd354aa71e108e8df54bc93ad4e051fdd17487c23e25ba2660b9. Chain 2 (Bitcoin): anchored in block 958341 (2026-07-17T02:36:29Z), 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/PYC842502277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x002733d13908ef89aa2fb7d011633412a97cbeb56d44f7d7d505c6839c67bb24. Chain 2 (Bitcoin): anchored in block 956776 (2026-07-05T10:59:37Z), 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/PYC842503520.
La Incondicional / La Niña Está Triste (En Vivo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1199ee40e55e02de868c5aa89c49bbb33e3eb385578f17075f12743108010112. 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/MXF169100060.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9c7f7e09e54fadd9d31bf19ec36de78d75957e6049c367885b492ce1cd470b76. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), 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/MXF169100064.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2febd3f609f5cc8d5d44f745d5ee26a6fa42326169d382a6366072efa2d02928. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/MXF169100058.