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 0x28e4e71eb9117bd1cd29b1afb61bf8fc02ab0a568d1a0e52de6faa1070c87a82. 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/fa6ec958-6320-4241-ba71-026a22131ec4.json and https://artists.proofprofile.net/proofs/artist/fa6ec958-6320-4241-ba71-026a22131ec4.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 0x7d42bc7fed52fe39eb7e1ea1082ae03af587011ae8fd9b577c905f4a08a042b9. Chain 2 (Bitcoin): anchored in block 958058 (2026-07-14T20:20:34Z), 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/TCAED1975743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a8f90b4b84d612b3183a4deff967edaad642562ffb036616430994ee0b5e4e. Chain 2 (Bitcoin): anchored in block 958447 (2026-07-17T19:47:19Z), 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/TCAED1975748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfffb6e6b278feb223b9c14efee791dda44a75d7008436e9925c47655ef492a4e. Chain 2 (Bitcoin): anchored in block 957596 (2026-07-11T18:43:56Z), 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/TCAED1975841.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23801bc6f6c6435fc583f197edae29ce81e7881da8c7720af06529765195fa82. Chain 2 (Bitcoin): anchored in block 956656 (2026-07-04T14:03:39Z), 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/TCAED1975933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x59a8f90b4b84d612b3183a4deff967edaad642562ffb036616430994ee0b5e4e. Chain 2 (Bitcoin): anchored in block 958650 (2026-07-19T03:36:41Z), 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/TCAED1975748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23801bc6f6c6435fc583f197edae29ce81e7881da8c7720af06529765195fa82. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCAED1975933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x526ecb33a7ff6ff0fc7ac9a2817d5d15a8af3477658fbc49f86252c1c4e4a4e9. 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/TCAEX2093733.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeb603222be1ad3813f37b86f7115179a275f8bde16e8f4591e5b0c48d90f1145. Chain 2 (Bitcoin): anchored in block 958690 (2026-07-19T07:14:39Z), 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/QZNFJ2200568.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9faa155bb369d80a336aa0c0886dc5b2ec1c82f2c6899878d8b815bde8ea3b65. Chain 2 (Bitcoin): anchored in block 957596 (2026-07-11T18:43:56Z), 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/QZNFJ2200573.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72be9cba0b9d5a7f55711872df4b178fe5066a11ea913e582a8c2c85886ef039. Chain 2 (Bitcoin): anchored in block 959071 (2026-07-22T01:22:08Z), 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/QZNFJ2200964.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x83711b846800543e0ae96a1c3c951ccd05a0d3f25c5fbe521547af0c7e564876. Chain 2 (Bitcoin): anchored in block 958153 (2026-07-15T14:51:39Z), 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/QZNFJ2208160.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeeb2a0379e96a98189026febbf2e14e667a8285c7d390911d498bfff03e0f5cb. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T18:44:11Z), 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/QZNFJ2208181.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x63e75f8f5fce5aa541d3cdb32c2427028bea21a196fff9fd8e9662319004ed24. Chain 2 (Bitcoin): anchored in block 958673 (2026-07-19T05:38:28Z), 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/QZNFJ2208191.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x50ca72fb99afd7267890f109f840b62b1dfccf92c1e35c4c3d15f43093a30666. Chain 2 (Bitcoin): anchored in block 958430 (2026-07-17T15:33:28Z), 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/QZDA82322403.
LA CUMBIA DE LOS BORRACHITOS (SONIDO FAMOSO EN VIVO)
EL GUERRERO DE AMOR (SONIDO FAMOSO EN VIVO)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x26aa49e1248cf51431aca299bbfaa00c5b4ebf244597d001fa0633932245472f. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), 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/TCAEX2093778.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x85112f64d91d6b1677e391e7d15755ee713585892fcbe3cb166d0edeb83a25f8. Chain 2 (Bitcoin): anchored in block 958891 (2026-07-20T16:06:27Z), 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/TCAEX2093740.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x778e1461064cfe65444d70f1292fba8495d7f93157b79ef6df950141fd1130aa. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/QZWFQ2516669.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd7c6e6928f5cc3ff51824d56858ac04e5ff66fb988e5cbc359434c6719abc832. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QZZ7U2523318.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x517ede041f287bcfeadd223cecd138fb5a61e209ad9111d48e59e116767ffbea. Chain 2 (Bitcoin): anchored in block 958865 (2026-07-20T13:19:38Z), 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/QZZ7X2594469.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x032cfc918541e85e567aa4e9428f801296ce2082fc465fa838e5401f0a18fed6. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-21T17:39:34Z), 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/QZZ7X2597103.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x03b4b7d488564ca07700c87fa0ff484cdb4b12424b0f1fb51a3e5cf0e7162efd. Chain 2 (Bitcoin): anchored in block 958544 (2026-07-18T12:14:37Z), 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/QT3F52585969.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6fccba146c378c236436057fc62a539c45e36c049b92ddb8af658510b8a7fccc. Chain 2 (Bitcoin): anchored in block 958882 (2026-07-20T15:37:43Z), 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/QT3FB2548922.