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 0x28ad820bf28adbcb2a38661e079ab86fd9880c2cd04a815b5c05ba9107f95280. Chain 2 (Bitcoin): anchored in block 954342 (2026-06-19T03:22:39Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8b10ab6a-a6e7-4167-afa0-2d769c29cbc0.json and https://artists.proofprofile.net/proofs/artist/8b10ab6a-a6e7-4167-afa0-2d769c29cbc0.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Own Your Crown (feat. Lorraine Ditsebe) - Radio & Tv Edit
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 0x36e701809215a5600d4c324016dbaae1bfede3581cd5606352501b456d133816. 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/ZA41S2226201.
Black Man (feat. Mogomotsi Chosen & Roctonic SA)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x858f8dacacdd45ade4a89ce145578371c1479daa8325048cd04a8effca552ee7. 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/ZA41S2226202.
Read My Mind (feat. Tumie G & T Melody Strings) - Radio & Tv Edit
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x34bbb102122aa606d01118f3a2a93db3bfd4fc00f8bf9d9ab9ec8e1de63863f4. 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/ZA41S2226203.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xd4010f7136c192bdbeb9541f72728b4f9788537066dc7a942460b7ca0e00339a. 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/ZA41S2226208.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4db809d8f38aef8b409bc2b9c7c6aab2868db20c979cc431021c052966639d13. 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/ZA41S2226209.
Unconditional Love (feat. Mogomotsi Chosen & C-Moody)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x884471e88cfb6d7c01339c80b27a65cd25cc24c008ed6ff88f0fd7d8608b25d9. 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/ZA41S2226210.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x38b6f11ac0d33c0f7722e8388f117c93941c9da1d7ebfc9b3ebb28fb905d7c9a. 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/ZA41S2226214.
Stay With Me (feat. Mogomotsi Chosen, Roctonic SA & Jay Sax)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x70781dabee69f2c842fd058bb3e3c5d5731152f21ac21e17c1edd9b0eec86f69. 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/ZA41S2226218.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa5c9511816ea230b48952a7dc3579124d21be2c533856382950bccd13da1e082. 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/ZA41S2226219.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6de009b172e56767941dd9fa33d260b2b26efd31445ce6165575a66588ecf21. 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/ZA41S2226225.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe7948e4062c79f8bc913c1bec92423dfa9474ae1f0c09e2f20b6eb2d4ebefbb3. 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/ZA41S2226230.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7e939a703fa12f589ad556dff8fcc6d71988f400ac6832ed822b88f3d97150ef. 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/ZA41S2226244.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xefdbd80c3f728bc74a39bd16e9f45e147611a86aab77e3c252689014815ee7ca. 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/ZA41S2226246.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x29294dc3eb6d34ce19cf21b059b547d62edc8c30609e34930d5280db1885a36e. 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/ZA41S2226248.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x721c703a146b8624a8730bf9a19ba3c343f09e5287a867e0481e23b36107959e. Chain 2 (Bitcoin): anchored in block 960138 (2026-07-29T19:35:34Z), 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/ZA41S2226211.
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 Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch