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 0x3d9191ad821246b8b117d5eaee19aa3955630154a5b8e475e5d5de9cb8a5a34b. 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/78521b40-8c2a-4d6b-a49f-2b109910539d.json and https://artists.proofprofile.net/proofs/artist/78521b40-8c2a-4d6b-a49f-2b109910539d.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 0x9d9422fb9f7c8db31bc528f4549eae485c1232db21c69282ece899083560f897. 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/DEPI82113695.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x1c5eb6784fb3263ee47230e118f87f9bef3e3949a67321946be563139882b687. Chain 2 (Bitcoin): anchored in block 958918 (2026-07-20T17:58:04Z), 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/DEH742206541.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5520a1a18f1f85629117b6e19d042b881a64f88dddff5ab74e42bf419f42e60c. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T06:58:16Z), 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/DEH742206543.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x51759012eabe1a427cd1cf500b7a5b08056d5fd7b7e85d03642139e80bcf86cd. 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/DEH742226701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x525b5f070519e9781cc7e23a49acc307f188acb6d5a1a4599f5e9a12f031e639. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T18:01:16Z), 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/DEH742226703.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c9cb07138d098aa97688ccc2d367ba12c7d20fbcf2ec235604f354bc83bcebf. Chain 2 (Bitcoin): anchored in block 958905 (2026-07-20T17:39:36Z), 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/DEH742312108.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe29ccf22ea49e662fd10fa3dced85e11be11535608215f448905ff39b4908fac. 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/QMFME2308987.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53a3b70357fa827f102b3e19e79daab59ed6948cd489cde558b72bcf81bc0a89. Chain 2 (Bitcoin): anchored in block 958931 (2026-07-20T21:15:01Z), 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/QMFME2308988.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc4fc73e877c8e1a997f469e1b45f23cf3ef23e9aa201feab09702c9a13e8ff82. 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/DEH742416978.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbd4d7ebb183898ddd2a7d6f93bb922bd1fb27e360510c4b41d614eef40956555. Chain 2 (Bitcoin): anchored in block 958857 (2026-07-20T09:45:25Z), 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/DEH742416979.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3440b5d880deb9e540242074d0f4f7fc03b8e2fe129be8adc18aff4dea79f268. 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/DEH742416981.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x00758214910f49b9910519f5d961d461e3c165298ee2bf684a2452659cc1e5a7. 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/DEH742416982.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc47ceab01fe8f76b2edf822e161a411d11943df86e517fc5280b669a2fd67fbc. 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/NLCK42420089.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3c36fc06b0f74c42c47d77bda28bdaadc240de040e8e1d4090a8ff9d188f534a. Chain 2 (Bitcoin): anchored in block 958203 (2026-07-15T23:54:57Z), 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/NLCK42420090.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6a8d75e49c5abc2f842acf69d699f4a80b1ada1371b59b6fe39802473c9db15. 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/NLCK42420091.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x98a8c0fa14b3fa0309645f778e5878400f66d34fe52c96b5bdf7e4991c71cc84. Chain 2 (Bitcoin): anchored in block 958324 (2026-07-17T00:00:09Z), 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/NLCK42420092.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9596417df23da54be1f88a05b7c2e0a8e579418fe066f1e4b9070e796353c79e. 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/NLCK42420093.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1fb297e309f8c924d51b7e5f553d3f3d8cdbabf5d06a3389bec50ce69c9d7bb. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/NLCK42420094.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4af16b3e3cfe437094097dc428dd678d77305cafd9050d70253b9d9a9b6da962. 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/NLCK42420095.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xed8509363f59eabc959987d02a9ff4f97e8361ef1b41adb1ed5dd425838fcc49. Chain 2 (Bitcoin): anchored in block 958601 (2026-07-18T19:27:02Z), 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/NLCK42420096.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x12155002d92e0f0eb70b45db836274cb9d6879b73885961f720f93a6bd4912cb. Chain 2 (Bitcoin): anchored in block 958388 (2026-07-17T09:14:21Z), 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/NLCK42509000.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4aa050876750ec791b67b38c57899447d3ea1ea80f5cef800348ae025a47f309. Chain 2 (Bitcoin): anchored in block 958543 (2026-07-18T11:58:44Z), 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/NLCK42509002.
Global Underground #44: Amelie Lens - Antwerp (DJ Mix)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb73aeb8606617446879c8eaaf2d38aba49847236ab13913c0dfc68fde94e7efc. 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/GBHFW2200081.
Global Underground #44: Amelie Lens - Antwerp (Unmixed)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x328309b6a91be17a41dcfa1b3b28e4e05f05fe5b35ffefaf6f7708862e97d3c7. 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/DEH742206538.
Time Machine (Shinichiro Imanari Remix) - Mixed
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5fd161d701490f6d1a68f60d7ace3db81a09cae3bdedc3e82e8925544c94c8bd. 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/QM4TW2208921.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x961cfeb2095a891cdf439f1307c4bf4678aa971f3c9cfb01f43b98b316e319fb. 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/FR10S2092923.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x663de6ab46a46fe6d14984a34ad1b111c4e36c5bd7105403676d8732e6141f5d. 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/DEH742334622.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdf4b3110fdf3cc79d55c08fa70f53c0d3447446a3035efaebe73c412f5029c8f. 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/DEH742302366.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdbe37dcf01b616adffa9fbb881fc9aeded9a285a2fad392e8b56f53a50bd8ec3. 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/DEH742201402.