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 0x06d37755434c41ac5be9007a69481d19d95d483c69734bd68b44b12aee55b1c5. 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/98c8146e-4039-44aa-8f8d-3546ad205e79.json and https://artists.proofprofile.net/proofs/artist/98c8146e-4039-44aa-8f8d-3546ad205e79.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 0x0ea239cf81a71ab5249fcf6e0cd105dbef056e5406ca834a85020ca8261a485c. 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/BGA472203472.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3a2499dafcf9594280395aedd04198da4f8d095bfb092c2e00a25422216a161c. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/BGA472203474.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc7ed1edfbfa922b5ac3d8567016ad0bf90e761d579ca1f5f83e97bd3540544d2. Chain 2 (Bitcoin): anchored in block 958196 (2026-07-15T22:31:58Z), 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/BGA472203477.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb877ffbc43698512ad2a0aa22d041fade1e5c327d5603184067b4aab4f823cd4. 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/BGA472203479.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfad7dad7b201a7ae919f5ec7df53349dc9ec0dd363a1053f7d77915bc76a4813. 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/BGA472203481.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6218d47065e170e3373a1485864a83d1551510b698743cbef8f49b9c0c373ffc. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T11:06:16Z), 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/BGA472203482.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb5b3f73260734170cf91f84ee15d14a91f6b8238eb6092810427ecc7480a10e1. 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/BGA472203484.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29b5a0c572ceaadde01b6181567e38b7169a0aaa38900005e0c31be6cfeacc0e. 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/BGA472203485.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcd6b0be3846a60eb1e77f8ad49f2c4344d05a24605654fd22955b27953936006. Chain 2 (Bitcoin): anchored in block 958234 (2026-07-16T03:46:09Z), 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/BGA472203983.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8d24a3956660ffe774584c2d75f136b3a74c533f2c7a5b55e4cdda1093b75da0. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T17:28:39Z), 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/BGA472203984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x696f112fc3991de8dca5bd819925cf397d589038f7598231bc87e5ad6d4b71bd. 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/BGA472203985.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd5f2d4430ec1e65228c4ef5bc157126181195536abd1b7728b04ef65bd706331. 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/BGA472203986.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x742239df5479a29856533cf5946d59dc62811a6a2392c2789760bec7fdef8fe3. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), 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/BGA472203988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2064c4ed6cb02fbb6c72c957f9a70372ec9f1f76b3ef6a00d147bcda3d0558e1. 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/BGA472203990.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x552727e45365b8f38db529115a2e4cd5d48d2fe5c5afb7a7b129e95bf04671d0. Chain 2 (Bitcoin): anchored in block 958526 (2026-07-18T09:09:53Z), 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/BGA472204003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9e27a7150cbc8ddce682aca1066c9cfb6363e4dd6ac000fa5ec291dba17db80f. Chain 2 (Bitcoin): anchored in block 958749 (2026-07-19T15:48:23Z), 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/BGA472204007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb428ec55d4965a5a0fa1113eb5d33bb7352fbfdcca82429f8fcdc69c9cd0f9fe. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/BGA472340670.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5cc25f4c2e0f843ce67db2f9e2018573bceb116e7115cd00c8accb4d730fa7cf. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), 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/BGA472431504.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x509166881731e94a5250ac3c79945596b053898cbf244038a8a3a232b541cdc7. Chain 2 (Bitcoin): anchored in block 958568 (2026-07-18T15:23:47Z), 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/BGA472431505.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7183a7f0b2fc334d8e99f60b273e5a79d12b2c9defba48c7b10a21bd724fcef4. Chain 2 (Bitcoin): anchored in block 958143 (2026-07-15T10:15:04Z), 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/BGA472442286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7098d1758a4b77d9cb491b85fb02d3a22948bb2319325fee2d6f9e8283de309f. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BGA472442287.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xce612b1e17b060a9966c14bfafaf5eede1c9d6b3c098818956e7f775c3403d74. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BGA472442288.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98bacb857c5277307e4de05b5931d7dcd6fadae920193cf049a4bc8199614abe. Chain 2 (Bitcoin): anchored in block 957835 (2026-07-13T09:48:24Z), 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/BGA472442290.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfcc69dd1a47aea64844b0d52d91d393014f532a33f0c454297004f8fe4c543b. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), 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/BGA472442291.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5540fe0133cda8024627888d4b3f8518879b3d2f76a818c29316b6a698aca1c8. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), 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/BGA472442293.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x628514635c1d6729e5f2cdf23e594ef912e7cfebd51145622a49ac720011b850. Chain 2 (Bitcoin): anchored in block 958197 (2026-07-15T23:21:16Z), 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/BGA472442295.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8fb55dc56411c88e022aecdd4327a6e98878a505ec03d930f4a67fd8898d916a. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T22:46:13Z), 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/BGA472442296.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x87f4d44f9baf8382536bd02bd95361160fb97ab314beee6b8ae0c20a4e30e989. Chain 2 (Bitcoin): anchored in block 958303 (2026-07-16T16:39:24Z), 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/BGA472442297.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbcfab8f5724aa446ac7ae8998a3f6cd1f1a3616439309c33b063e6376357a08b. 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/BGA472442298.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4695c44548cefae2cbd7b15d5e851beefdc570c2ff1d2b6c2c59e8cadc2820f0. 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/BGA472442299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6aec588e0db25d85bb26b762c817fcb8bd5dec1ab6475b51d32c8d5111424899. 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/BGA472442300.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf750762ee11ae41b9d96016d553cd059465136aa5e852cd89fc3c72f2e3341f7. Chain 2 (Bitcoin): anchored in block 958384 (2026-07-17T08:27:02Z), 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/BGA472442301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa9b647f6ece6ff95d3feb48a7246a190576625bc6bbe668e250062ad5f44b352. 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/BGA472442302.