Letona Spokes Hlatshwayo (29 March 1968 – 23 July 2013), known by his stage name Spokes H, was a South African township pop musician and songwriter. He rose to prominence in the late 1980s and 1990s t
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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ac79024fb0217efd17a450eaacdddad6a01b91b7eb6fa7bfe458b5235bc987f. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/86e7e32a-932e-4e2b-bf2d-4662b3c8ea8e.json and https://artists.proofprofile.net/proofs/artist/86e7e32a-932e-4e2b-bf2d-4662b3c8ea8e.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 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
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x53665ffe7327deecc65ffb0e9530641415884d2958cf50e12e9851f11511608d. 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/ZAA029600101.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc49d1eb8e432ae879b19eea49ec40d718e74fac8cd32337022ef293c8c758d21. 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/ZAA029600102.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x23c790758be29b63c7869f684a36268cea89e59e305583ee829e704c1139e8e1. Chain 2 (Bitcoin): anchored in block 958653 (2026-07-19T03:54:23Z), 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/ZAA029800701.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x735c7e18fc01393b9f26deaad60d054ba72cff3a5f0efa6945e52c0d3f7282e5. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), 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/ZAA020200124.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfdde95afcf124d5b09ad8a8ef80903fbb8ec854d73ea000ea4545975eb6e9a17. Chain 2 (Bitcoin): anchored in block 958335 (2026-07-16T22:37:47Z), 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/ZAA029800698.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf17526900fe9dfe001f2ee97634eb4902c16393035a628b2d835493d7c9bbb87. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), 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/ZAA029800706.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe42f16acd7cfce7ee9d3538ae826f11184918e7efa83cfccd999a93b48747f01. 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/ZAA020500589.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xeae74afdebc68677719c2ad179b5a80d4b96c43f5ed69fc5d999aa223632c02b. Chain 2 (Bitcoin): anchored in block 956856 (2026-07-06T01:25:57Z), 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/ZAA020500593.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16618e124d7647f805c43291f0585d674c5a303850c57bae72620f3ff66edcc3. Chain 2 (Bitcoin): anchored in block 958163 (2026-07-15T14:38:07Z), 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/ZAA029700495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2aae669e8f9e40ea49399e605ee2d58ebe0a259a58a16a17da63470d89e0bc17. 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/ZAA029700501.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1f2c6ebe2b1d32f521ce263a0f653206837a08a0f821ebe9ead300a47117fed. Chain 2 (Bitcoin): anchored in block 958897 (2026-07-20T14:57:46Z), 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/ZAA029700503.