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 0x0ab4ad3eb07e227d64dff4e968d51f3fcdc7f56e70035198fb2ac0b292dcecc7. 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/207e5ab2-a81e-42b7-a033-4c57875bcd00.json and https://artists.proofprofile.net/proofs/artist/207e5ab2-a81e-42b7-a033-4c57875bcd00.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 0xa7e371ca52d21549854d1aa61ac235c3c9f37eb1e490911796233a5deeb24bb0. 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/GX3Q92395843.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90f0ae6a6093facb4564ab4088af7ffece9a3b5eeb1e0bec8292acd969640557. 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/GBLFP2068616.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfa111daf7bb56f1180972c7fe0275594dd03b62e68ed13ef4cea00ec61e27c9f. 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/DEKB71677086.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x97c04196082852ccbf30bb5cb6e1d1e96d2e6fcd24e0abcd201ca4f2a24f08e4. 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/DEKB71677101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x210352d1b9707899afcbb1ded3686202bbbe8dd587f1aae9f20d8b93c50b78b7. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/DEKB71677076.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9578fd60b651e0526c2963d49439c995c17ebaa39a4991116d0333d71e2958d2. 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/DEKB71672599.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd32bf8e60ddbe716ac2f48b289a2f1ac629f9eed2258e299ba9b65241c729719. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), 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/DEKB71672600.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf7f075121c65e68318159e1b7955fcb92a0bdf7c2d0d3703a2e30ca15172ab48. 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/DEKB71672607.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a71cc4d0dde751e617fff7e08ecfd46c36ee39cd2b959bcb33b34b993e26958. 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/QZW9M2400495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xede5fa92cb33d1603581d500c618ea395fdef2b0af354e7013618869c0c5bb00. 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/GX53U2351945.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x74be6448c55527f9dde7a2d9def81544b2914f6fbda90a069165385cd36054f0. 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/GBLFP2465162.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa52375918ff8a25fa66a1e6bdd441977921ec84544a146f1e46d1b99b947a4fd. 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/GBLFP2224823.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4142b05a76b61e56e2ca7ca155692464204655a76ad34579446d9a640723c643. 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/GBMA22157261.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe9fad01a18bbb4dc127bc17882d314a0966bd9f7b74dd3aefad726128a545ea6. 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/GBMA22112159.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10198bafa1ab5d37eb69050b5149ece18964c692c3105ac5081304dfa043ede3. 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/ZZOPM2104668.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x104b0e211a04d1da9740e0bc24611960b081eecb8b1e255b54509608021b316b. 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/UKXN21964552.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90f0ae6a6093facb4564ab4088af7ffece9a3b5eeb1e0bec8292acd969640557. 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/GBLFP2068616.
La Cumbia de los Pajaritos (Bial Hclap Remix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9008dab9a7f038f9064d3b56add791a151cc55aae98ec2aeab906a0c7fb218af. Chain 2 (Bitcoin): anchored in block 956894 (2026-07-06T07:53:57Z), 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/GBWUL1918506.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5aae70620c8eb16e102193b04519ad499fa05d160a3b499dd33c92a1e79474e2. 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/QM6MZ1993684.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x33724698e9bd20cce632f323398092fe5b7c64d403ed8f0f7515df31c1f038cb. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), 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/QM6MZ1993687.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd612ca118ee5de271befd3eacaca194a1e67bedd2c9c87fb7d974cd104def991. 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/GBLFP2072030.