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 0x567f9f4d885c3d68ccd75abf6835946846bd27131c9a20637ae56ff3e582379a. 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/e6d7187b-dbf5-4d68-8025-c9363c74d2e3.json and https://artists.proofprofile.net/proofs/artist/e6d7187b-dbf5-4d68-8025-c9363c74d2e3.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 0x2c20eb5c5af814e9c4e4a716be850aeefa23ca2b7889f33227509bbd1dea9a5c. 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/QZ2J21507199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x414a689569504283fb8b6e635558cf73a22ea6d7cf0a976201a676f1369a7685. 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/QZ2J21507110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9cf4f612d846750ae389a3dab70a3230104c2ce8da267d5537f81075505c44a. 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/QZ2J21506725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x398670950b26260108d9a9f1c252ff98aa362cecd7c61a61e0d1ab9a0c82896f. 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/QZ2J21507213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9cf4f612d846750ae389a3dab70a3230104c2ce8da267d5537f81075505c44a. 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/QZ2J21506725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11ca43e7549b3bca825e847c320452744b6f0ac586c9a3c183691d40d1dff590. 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/QZ2J21507982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9cf4f612d846750ae389a3dab70a3230104c2ce8da267d5537f81075505c44a. 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/QZ2J21506725.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4db4ae6cdf650ece93b9eadcc2e200945648af91b95eeb4421f893bf224a4c5d. 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/QZ2J21507983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c67fba7349551aa81a0fd9e86f1b10e3032cf04c72a0a7d473475ef3a2dc930. 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/QZ2J21507984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x806296b9a7e09e2b853932c0c4b2bec7bf830f757333fe3000c49782a5615b52. 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/QZ2J21507584.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x414a689569504283fb8b6e635558cf73a22ea6d7cf0a976201a676f1369a7685. 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/QZ2J21507110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c20eb5c5af814e9c4e4a716be850aeefa23ca2b7889f33227509bbd1dea9a5c. 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/QZ2J21507199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd040211f9759b7088d1be3d93e54de1204c85280d6e903d75aee1aeb065c2e7. 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/QZ2J21507702.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdcaed3c75f9f7d4011518b478e52ef17531d862e532dedc91bec18e1c36298d6. 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/QZ2J21507985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x89641d687dab834cabf2300782f789737663a8e50b0546fef473eb9df310f5d0. 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/QZ2J21507986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x22a8783514759de07f56561d08707a39624ffbf2315db9127ee4d3a7b603e8d5. 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/QZ2J21507987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe50a539e37f3e12053ef25c446c6342afa389bed37faf8a80b68e97abf6997a7. 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/FRX201907879.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x42611aa03f58521c5cb70da8ddd944166364e4f8e4287252df4cb53fa30cf64b. 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/FR96X1985781.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32b8c1a20e721da522d74696915a6d14db45f281aec7321ff3f62976f3ea82ec. 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/FR59R1972704.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9870916c7d547bc2135b59c11c224b073906a8f2e32157afed5125c43d894aab. 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/FR96X1968226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d37f7f01c6f141e8eed6cffb68f9e2f33eb92c137eb8571900b3c05be83bd17. 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/FR96X1933313.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6de979361616dd9bce4122390ec9c7735b7484cf09acde72b8e9d5c185ebce21. 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/FRX201907880.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7250a5b4e3f1a503d4114c34689f2a0db2563e77deff082d617a3ed0750b9816. 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/FRX201900414.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0bcb26b29d28f4220f115c864b32127e3b8b369d02a367629c5f7e1540e3b82d. 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/FRX201907881.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7379c9271a1c8d78a140ad97809edd87928f7fc634d9217921e349c6f00eff6c. 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/MXF011300546.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x18bb34b12775c7b13778541ecc4128ff75a75fbfda7774eeff0e26d1cdb6a4b4. 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/MXF011300547.
Fascinación (with Melissa Robles & Eureka) - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9a66398a6af73bc10f27921fc4e2743a51c5aa84441dd4451a29ace0f833d2fb. 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/MXF011300548.
Borrar y Continuar (with Pablo Preciado) - En Vivo
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd260b8b283698c0f3a57f875f871911bf92204d57beaff1f7f5871f17d4d76b. 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/MXF011300549.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd100d07e9564fd1ca5d8b5dbdee2ef5085aa000b512c0d16d3d20d8852b8b8b. 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/MXF011300550.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb8c640ad84b94de8146e7794c0dd257b9e768c03d3661bacd4f63e1d9e776433. 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/MXF011300551.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcac553891cf8637696d1f62a70ce7c3270eec3342b68293e21061d91bd7f89cf. 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/MXF011300552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x735b8931e2ac08843f0a8ce350d3da2ea044af1ce4c85a7f2fed0b818e3eadae. 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/MXF011300553.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1baa76e57710dd68d02a2cde87bdd9716d5dcb6c486fbaa6d34f0ecd6a4e1d34. 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/MXA4V2500001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c337bb2af5aecde290329bb1750ee35445a4df83c720cf65c0d3579a910b2c0. 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/MXF012000108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96f954a207c362b6c5dc5fab73a6ce14e381acbdddae015e1ea361e9d2e223d0. 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/QZ2J21507373.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c20eb5c5af814e9c4e4a716be850aeefa23ca2b7889f33227509bbd1dea9a5c. 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/QZ2J21507199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x414a689569504283fb8b6e635558cf73a22ea6d7cf0a976201a676f1369a7685. 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/QZ2J21507110.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x398670950b26260108d9a9f1c252ff98aa362cecd7c61a61e0d1ab9a0c82896f. 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/QZ2J21507213.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdb3571a257ee6da8b256fb43e5c8afddd810e2744f28a7ce73f29ebb44e9e575. 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/QZNWZ2193434.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfafaffb50e5aa38f5860d34748440d2cacfc865f4e5285d2a858acfdc1ff95d8. 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/TCAEU2083114.