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 0x5efc9412e3873bbe21d42e7c0d75f69109d40099a28d344e2718a3009a30135a. 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/11991f44-0deb-4836-9c51-94143601dd82.json and https://artists.proofprofile.net/proofs/artist/11991f44-0deb-4836-9c51-94143601dd82.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 0xf8bff6faa319d045fd39132b9c4166d61c8d5f70d1d8235992d006cce2a04d78. 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/QZTB42582662.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf15341ac076f70e0241865d5b55eb2ea2ed9ecf5aa31d3326045708a46c07082. 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/QZTB42585345.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0b4467d5cb40481c84bb66ad5773d58615aec4e84bb08df4a70584aa9cef7dc7. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZTB42511950.
Tongues Of Fire (Give Me You Live session)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x79591eeab41bc1d2002d251308eae41d361a7f852a9c96ecf410247efcc2e455. 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/QZNWX2518277.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9cf6f15d56d70ba9a97d65b7d92f806d626cd2121faab272180fa340fd3e19df. 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/QZNWV2501449.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x55531a90848049df51f0ca043c3f309270dae7b93abc31233535b855665675d8. Chain 2 (Bitcoin): anchored in block 958042 (2026-07-14T18:24:07Z), 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/QZNWU2507842.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd6f4d35e0339835a40ec3e15544cc7b153cc1d81cb67966af7f8d50181e0a4c7. 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/QZNWT2515425.
Viktor kliford Amazing Grace DannySong Mary Audu And Jennifer Igomu
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb9d14ae82973170c749d438b6b608c05f890b026519e9cd56d9fe37a7cdf7ba. 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/QZMEQ2549984.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd88b1673efccffedb5def7df77709ec3b5cd93194768bee0e88dadb2c18c7452. 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/QZMEN2509379.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc14d33549aedf700bb85b88af0b750652e1675d2e835e82ac63ccff5b282fb4a. 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/QZK6H2560609.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4442bdef4e32d42a5b7bcea3983e9246cb5a59051e0c03424a82a2f6bcd9b813. 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/QZK6H2558859.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe437646001e64afa2ac5b1f7e1e0ccbc67894889eb37682e287f2df5fce77a15. 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/QZK6Q2575070.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7a2ff4617446a5d0ba33ba01bc8b99d29e887faa3cf288af8aac31cc3ab94b3c. 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/QZHNC2535693.
Tongues of fire (None Like You Live session)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x90344c2cda67368218db21fe348d6bb221d7c18847e73d7a3341440a697a4142. 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/QZHN62568424.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x300fba4293daa4016711ce3d060a1e059843e4aba0282274add9ea3aa72a6654. Chain 2 (Bitcoin): anchored in block 957819 (2026-07-13T07:53:33Z), 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/QZHN62504887.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd3c563f453ed5e578bc98a4e57f999731c2c94327e357e850be7f4afa8b502ca. 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/QZDA62572227.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10dde77e4e004ba0c006fbdc738a28d71a6fb3b0be08ae07c44010048dbce7ee. Chain 2 (Bitcoin): anchored in block 956351 (2026-07-02T11:38:34Z), 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/QZDA42591501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2c44a8af0a19fb424839131aa8bf4a2228e160185c2cf7f8091746c370bfd0f0. 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/QZFZ32530422.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x72f6c06ecff55776ee55c0f1732104428386c78554625c451c6ab9024c7ad0ca. 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/QZFYZ2562423.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd2f710c14157935cb69f56851db47d5b6f644984d1f9ef480be6e18bfce1389a. Chain 2 (Bitcoin): anchored in block 957041 (2026-07-07T13:25:45Z), 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/QZFYX2539153.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x463290d82d871208b81e399bd0014a102a1df34defb5f91d178500c64c2a0b0d. 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/QT3EZ2446861.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x862d126cef6c9c058b933fb92d6748bc9be8363eeeaa884f38496f2c518f1700. 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/QT3EX2498679.
Tongues of fire (Language of the Spirit)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x333b2ae3d686260b13d3d7199bdafb672fa8efc7910bf16927bccb4ac8ea32ee. Chain 2 (Bitcoin): anchored in block 957075 (2026-07-07T18:50:38Z), 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/QZZ7X2471871.