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 0xbb74a5503815ad4e5d29f2bcc6fa592dda741e14944afb579f18bc202769c8bc. Chain 2 (Bitcoin): anchored in block 953423 (2026-06-12T21:20:00Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/9aed5468-bd78-4a4f-931e-60946dcd6d9b.json and https://artists.proofprofile.net/proofs/artist/9aed5468-bd78-4a4f-931e-60946dcd6d9b.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 0x7323f4db39aed41a622c3179006a9cd1b8dbbba120fcbad01e64d2cf5d04edb9. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), 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/ES6010200182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4b3651c64422e1047dd3e2cdbff2ec8aa40b5dcf3bf695c2b630b82677bd70d8. Chain 2 (Bitcoin): anchored in block 959047 (2026-07-21T19:17:28Z), 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/USV291310628.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x78c35649f69a5e0b8d2333e4be5769aeb7c53acdb6fe0d57cab2bbfba4a280e9. Chain 2 (Bitcoin): anchored in block 956728 (2026-07-05T01:43:49Z), 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/USA561390840.
Copito de Nieve (Banda Sonora Original de la Película)
Un día perfecto te regalaré (De "Frozen Fever")
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8f2ba44d5c79c52955a92e72829db9de769a95e8da0e3d0c16e9ea36191c6e9. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ES5701701037.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3801f9adb86038481b78d1c9b0db38ad7806597078dc043d1666dbc5f7d366b9. 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/ES6010200034.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x119b6df78e3d14be4aceb8615fe941d653f3c51cec537b9256358586fed43c58. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), 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/ES6010300052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe197424037b839565bb18ec8f42449155094f38e08e645d0668ce380cf148c2d. 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/ES5701701001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9c0993e6c09bf41fa0753e61a32eca7a2817a206676776813fd0abe75623c0d. 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/ES5701700917.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x13725b76ccf5ea2ba1fd738ca8209673bab4a98d9bd013324421f702e374f913. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/ES5701700943.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6985f65780027f4484ade06932ac18482f33d327eae36ceac496c16493f260ba. 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/ES6010100112.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x324a248211e09abe76e77a10c126ae78cd25646c1cc951cc2bee904014603fc9. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), 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/ES6010200026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe0e76ae702d7bde544a039c127a4244c0d3271728011be0983454f6df1d689c5. 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/ES5701701067.
Generación OT Juntos (Operación Triunfo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x119b6df78e3d14be4aceb8615fe941d653f3c51cec537b9256358586fed43c58. 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/ES6010300052.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea59fbc9f34d89f8751692d281d802c42da7a5f9d0c7ca71419b968546af0139. Chain 2 (Bitcoin): anchored in block 957052 (2026-07-07T14:50:41Z), 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/ES5702202318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x324a248211e09abe76e77a10c126ae78cd25646c1cc951cc2bee904014603fc9. 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/ES6010200026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe1b71203cd87f124b9cd5086c1b8aba4f250cfb5dcd35160c1272331ea43a3b6. 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/ES5701701174.
Las 100 Mejores Canciones De La Historia De O.T (Operación Triunfo)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe197424037b839565bb18ec8f42449155094f38e08e645d0668ce380cf148c2d. 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/ES5701701001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x324a248211e09abe76e77a10c126ae78cd25646c1cc951cc2bee904014603fc9. 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/ES6010200026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3801f9adb86038481b78d1c9b0db38ad7806597078dc043d1666dbc5f7d366b9. 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/ES6010200034.
Let It Go The Complete Set (From “Frozen”)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa3d0b868edf61f9863ec0697a6279a0e16c06b092e029cf4afe437bed3acc2eb. 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/USWD11366516.