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 0x3fadabae6bbe246d85e5994d1683d9d0f7a9821e7059a265a4bd867eee2537b7. 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/ba397cff-d366-443a-8502-cef3eaa461b0.json and https://artists.proofprofile.net/proofs/artist/ba397cff-d366-443a-8502-cef3eaa461b0.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 0x28811491f3ddaf863419896d244f6c240ca48ca29e16836b4531974f76541062. 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/UK6BP2000299.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa7b3822fb98713637c5bf94f13120c8881be7024497519b796853ee8258d058e. 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/UK6BP1900225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8f4de42032a13700b31b0d9dc68831dc2ffb574e2ad18f174100f3a614e716a7. 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/HUAMC2200022.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5faba9defdcc323266a176d51d840760e55391946ba870d7e86f536f5f1d59b. 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/HUAMC2200025.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x27ccaef8e74adde7ad3f41c3e9fb1262d7fb207f3dc3f6a374c560f38b5955f9. 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/HUAMC2200026.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6e3a63263c21444cc8993f8860cc0d3712e0135897e677467533b9f4d1a0b7bb. 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/US7SF2357354.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdc1127f378a89a65903d77b6d622a939ad43560c7b37ab06d3d7f907ebbfa9ec. 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/US7SF2357355.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xceb7d0e61ddc57d6d185e918d7454e17b175468211d9079cc7ea6e0fe3eb3d4b. 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/US7SF2357356.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2e23b20fd46633927282ff9a055fc3760c6c3740b63d5bb0c408ee27a1455b5. Chain 2 (Bitcoin): anchored in block 953528 (2026-06-13T15:41:10Z), 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/US7SF2357357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xda0c6da00c9635ff727065fa6bf299e7aaf0eb8f74460ddf34789cbb1c6affbb. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/US7SF2357358.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x263b1169802791f3f0c8c30682f4c2e4e89a2b25a2b35c82e787e20f3c7ce96e. 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/US7SF2357359.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8c2af66dfa68327b3771fd3a7bf76038ca3461b00ac96328aef5a79a98453cae. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), 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/US7SF2357360.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x337a9afc806c7a15738031a422f1b0bfa386cf8b8fb50323faf31557c00a7ef3. 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/US7SF2357361.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3fada18a4543d26ec1b078245050deaba2064c3afbbcda63aaf2e33f99b679a8. 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/US7SF2357363.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa43cdf36a1a39e9d592203081df7eb33ba91eb6df57b64bcea3c9e61ea5cf6c3. 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/UK6BP1800188.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x855263a4838213ff30b5eccf0dbd91e38a6ced090877d7ef1af185eb70204df9. 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/UK6BP1800192.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ea86749ae48cdc51ca199ed493c387e6b7908d2226c4f9f02a043586c0db730. 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/UK6BP1800198.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x66ece91377c08e86f79f8df8887ddb389fbfa0d75119dc19bac4be8bb55378d3. 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/UK6BP1800199.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x575f7d62d234f66d47be33800bc3d127eca77e6181de3ad72b0b6b6b67f72f58. 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/UK6BP1700062.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcb1d4f88cdb0620e4f2eb170b3c080ec5748868753a1077498a5303da9fd5ba1. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), 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/UK6BP1700063.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb2e23b20fd46633927282ff9a055fc3760c6c3740b63d5bb0c408ee27a1455b5. 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/US7SF2357357.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6c6455e9ed4ecbfbbad10899ad7b3d177167764a82a7c54a78342f7fb02672a7. 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/QM4TX1618262.
Mapinduzi (feat. Kayla Waters & Versetyle)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5278847213c5c55a7367c576a2136696b6b5be245197020d42fc0e3417a2133c. 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/USXUP1700007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x94082203bfe40ba1b9f8eb630d521634e05d634d2562d099b9ccbbd7f2a624df. 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/USXUP1700001.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x8b7b84a449422d50dddd295c80c66de56fe90cb881cc1144a2ea523b26706725. Chain 2 (Bitcoin): anchored in block 956889 (2026-07-06T06:56:49Z), 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/USCGH2071511.