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 0x0a0311d8e9d9bd86de71346e91ea42cf59999aee343ec5475648219f6169c666. Chain 2 (Bitcoin): anchored in block 953408 (2026-06-12T19:28:13Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/6d1233cd-5eb7-4e7f-a975-b1a9c1925ba7.json and https://artists.proofprofile.net/proofs/artist/6d1233cd-5eb7-4e7f-a975-b1a9c1925ba7.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 0x08fb68915fc794310c166dc87b8eb1dac75f96680a7d0dcbc17a0726acd651ed. 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/USCGH1994707.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb4c5a1b8617cfc9e0023d5d8cfae38bbf23f86cca6c37db3a85fec55656aee8b. Chain 2 (Bitcoin): anchored in block 956422 (2026-07-17T03:27:02Z), 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/USCGH1994715.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0590ff25e7dd67ee091c2230786e9e753c007f76c5d336176f64e0ba67b7a3fb. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), 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/USHM81950374.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd8e97efe51f8d9edc9c06039dbcdd18da9db5117ef516585871168d9cc7912d. 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/USHM82458225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc39a2f37b0ec2dfe25ae976161cbc0fd3a1d42f3c7b43fb33d252d15b324a58d. 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/USHM82458226.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0d9abb22aac1c8e09c3134c046df2fcab1a5b19b5d5d6c3544daa6f935fa3d55. Chain 2 (Bitcoin): anchored in block 958517 (2026-07-18T07:54:29Z), 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/USHM82458227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5c077283025c706f9cffccd14eee529e957f86c6b0022f75cd880ed373fa03ec. 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/USHM81950376.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa452b245f8f86f34c129eba9f2688c150e4223d65017471dd4dbf54570ad895. Chain 2 (Bitcoin): anchored in block 958761 (2026-07-19T17:49:48Z), 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/USHM81950379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x65e8cdca82ef6e57009ed5687dab32743e28a0d78ce3bc8040281d9b3994fb8b. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USHM82463813.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32fe01c0f57ce27b00ebeded58d6fbb7f7106f21dd43617a41b6dd570a63f583. 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/USHM81950377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6f6e809c883d42652bde26ec0beb67c1295a305e71b60c052baec1ccdee8e3b9. Chain 2 (Bitcoin): anchored in block 957851 (2026-07-13T11:26:33Z), 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/USHM82463814.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3b88655ab90064c97d1959eccf43d4da1f9fa024783a90b0557fc9f3e9b588d4. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USDY41910953.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x47b633db548a9f52719628e1f4c30429a8c44c24cfefdc4e0258bf641f640453. Chain 2 (Bitcoin): anchored in block 958444 (2026-07-17T19:12:23Z), 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/USDY41910954.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x19a3fdb2ecc36c038c5418969b5268d697afac86e8ca48ae1f1b34a73c5afc4f. Chain 2 (Bitcoin): anchored in block 958839 (2026-07-20T07:01:59Z), 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/USDY41910955.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3528a061adee81ac5ac722d594db6d0bef7556542e11ed53531df1e1e86d1796. Chain 2 (Bitcoin): anchored in block 958152 (2026-07-15T13:51:08Z), 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/USDY41910959.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd2e4bf4d46bb2c178ae596f856f33a042b9ec3d9300d0ed7cbcaae2301f408c. Chain 2 (Bitcoin): anchored in block 956560 (2026-07-03T23:28:02Z), 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/USDY41910962.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xea2bfb53b002dd841fd22036ef4e3ca12fed1bfe62e2f3784b1a819abf049c50. 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/USCGH1935743.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc8cb02d97edb3b4d80067915c9cadb09274aee9cee80b0b9186bab4e55c8b213. Chain 2 (Bitcoin): anchored in block 956484 (2026-07-03T10:47:44Z), 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/USCGH1935744.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0f849b8bb7a729b4266e2f7156607b976401ee67834d80f9236325d0c8c77ccf. Chain 2 (Bitcoin): anchored in block 958489 (2026-07-18T04:13:26Z), 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/USCGH1935748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3e7038006e60f7c4301afc33de5d61bf3922473ace5f25592140b431d10b0c16. 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/USHM81950370.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2bbf83b60bab296a58c9b56db02dc555a561a941e50adbf2cbcd2ed58788a20a. Chain 2 (Bitcoin): anchored in block 956857 (2026-07-06T01:26:17Z), 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/USHM81950371.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x91ac8a4a6aabbdaadb91653f4856c5740a51f2288a9c653546a8d79dd88010d0. 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/USHM81950372.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce0f049011348186febb0dbef46828476adbe8e1a270ef235ed2b60c02d47037. Chain 2 (Bitcoin): anchored in block 958796 (2026-07-20T02:10:17Z), 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/USHM81950375.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x32fe01c0f57ce27b00ebeded58d6fbb7f7106f21dd43617a41b6dd570a63f583. Chain 2 (Bitcoin): anchored in block 956738 (2026-07-05T04:47:21Z), 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/USHM81950377.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcaad9ec3990c0ee38aa11a0aee0c25a691af8643e2a36550ff7cba5c7c40492e. Chain 2 (Bitcoin): anchored in block 958742 (2026-07-19T14:09:34Z), 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/USHM81950380.
Mi Alma se Enamoró de Ti (Acústico en Casa)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x146951a2040648cb9496508df67c35bd7c188ed83587fce2b2969c8862799183. Chain 2 (Bitcoin): anchored in block 957759 (2026-07-12T21:46:51Z), 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/USCGH2185233.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x77d23b619ab8f20b17769c3c2f57c6f73546289559ae3d1a2b6e07c0f2eae5cc. Chain 2 (Bitcoin): anchored in block 958825 (2026-07-20T07:22:39Z), 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/USCGJ2219316.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x422f512df7bfd30c38a807908616880e67cb9d020fda83bf59928ac12e9b1a45. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-16T23:13:54Z), 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/USMH92320084.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x67191c1f7befbd27952645ceaa12a0cbc74bf026a7ea966a6edd6069f5613713. 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/USHM22041707.