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 0x589bbcd10f00e014b27397639d91d42f4e8a3a05ad3ea06829d9ed8c3164c7e7. 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/910bf83d-ad30-477d-b3b7-8b306c983c75.json and https://artists.proofprofile.net/proofs/artist/910bf83d-ad30-477d-b3b7-8b306c983c75.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 0x97229c21897a5d57e82dcd3adc218614dd52dd5d5cdc45b6b986940acdae1d20. 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/USUTV2201636.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5bca2964387bdd3d9f24a8d9aa275dea4f75dd2bd92145d25a2ca6970e1554bc. 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/USUTV2101505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7527b53218ef66b718e412728ebd4eec6ffd291cdd513f0f1ac821a1a720dd55. 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/USUTV2101437.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6584c5b78dd14ea6b3c666555d87bd84722140f24ba3542c655548f97c492ede. 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/USUTV2101470.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x822687246844e4572b4a515e3b85a4aee8ba6f9fb512bd19964d05d077c11fb3. 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/USUTV2101491.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa17f5bbda58cf9e3a43cc7c81ada0cd99a308cd1c1d557d14f2524d3b89e8e5c. 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/USUTV2101492.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4c72bce32efc122d29eadda283bd7365a4b312af79b0c5fb58fe568b58fa42a. 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/USUTV2001139.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8a9049cdf19933aa432aadc5af04c55224d18ff1b79fd3d6ed471d68e1e2e90a. 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/USUTV2001182.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6a6fa73d0c671bb5f4032615638e532f6c27656def880b2d2db8c89d266f40b. 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/USUTV2001129.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe43e047439d07a566b912fc330ef273527001452e252aaefdc3ea47b5c8bb48a. 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/USUTV2001170.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6834606addf861e55b418fc68fa7d43d7413bcfb7041f107d357dced18b60919. Chain 2 (Bitcoin): anchored in block 959159 (2026-07-22T17:48:40Z), 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/USUTV2001175.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfb782ec894776b9f08f86952a108c605d2daaa26ce4e5f1b7f3f963445880bb1. 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/USUTV1901044.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aca4df08eaf1f7562a25f46bbf04e608b2af498f02bf50ceb064dce4ac495ed. 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/USUTV1901069.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11bc8675b5cda945574d7fc926538cd10fcfea854cbeeb9d9503f049cee62af8. Chain 2 (Bitcoin): anchored in block 959152 (2026-07-22T16:23:52Z), 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/USUTV1901070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa8e15cd01ec914a0214c2af22668c6838ef89e685c20e1cf7cc4cbf6a28ba294. 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/USUTV1901071.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9d4c5ce9061e651cba6ffbe5d535ece91b7bfc1e8217636d7a4626cf3fca651c. 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/USUTV1901072.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0e85260291c365604ce302d8ffbb726ddb1401a99cebd97066c3cb8280d68edb. Chain 2 (Bitcoin): anchored in block 959155 (2026-07-22T19:31:20Z), 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/USUTV1800971.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbaabe2d34f7339a57453a082924b21dcde5bd4291b7a88481fe9dd5c171ccb0d. 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/USUTV1800973.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9f39f8b638f7f0ed52f081412ccf00d12677269d571a34d85f29981a854aef8b. 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/USUTV1700790.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59d5b2936d3a62d60b62f039640dc34cc950e6e845e51027a5974b918670b9a0. 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/USUTV1700791.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x561a23c525244f6ef6feaae1dc40fcef0d62c7fedae9b38e1025944ddeb7033a. 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/USUTV1700798.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4c0509023f575da1ddee74bb3859f383ce0bf5bfd0ae5a3a459e36fb4f986c52. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/USUTV1700801.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf5354a0515d37ab31499ea400dadbbb11c9debede1d6a69daf9f7cc631eae2bc. Chain 2 (Bitcoin): anchored in block 959134 (2026-07-22T13:34:27Z), 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/USUTV1700805.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda2ee03e5fab8afc3b765ffa2c902ca06e4b0593cc3d5628ea6ea625ef70626d. 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/USUTV1700806.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x882a5414f7210a2bbc749d3fba12484c9d80693e7a57c08313ca6dfbdba211fe. 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/USUTV1600606.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x75ca38238a41934ca4983df70bba537f8309055f1d1744ce02eb19a0cd4da600. 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/USUTV1600661.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x572cdb94e99e9f12e246a2f40eabea61afaa04868b85c92e0fc3a8c11e39e8cb. 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/USUTV1600667.
Paisanos Héroes Nacionales / Decálogo de los Mexicanos
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa8f9e57c3d44ff992f06b7ef8857f7f52d300da0a586162aa0ca3156113925e. 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/USUTV2301658.
Popurrí Rock: La Plaga/ Rock de la Carcel
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7527b53218ef66b718e412728ebd4eec6ffd291cdd513f0f1ac821a1a720dd55. 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/USUTV2101437.
Como Voy a Olvidarme del Rancho (En Vivo)