The African Jazz Pioneers trace their origins back to the 1950s, an era when jazz thrived, and big bands dominated South Africa's music scene. The band was founded in the 1980s by Her Excellency Queen
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 0xaaa0b76ad565b53dfeacfdf55e2196232bf6a3904c96eed8f68a22116c4826a4. 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/954b2238-8114-4200-9269-a199dd475177.json and https://artists.proofprofile.net/proofs/artist/954b2238-8114-4200-9269-a199dd475177.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 0x47800c11ea5507401107985273d343ad3d4985cdd3510880f72a9a1f93ad91fb. 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/ZAC031900856.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6d584f1239b7b452b76440aff581a81ecb094840f5b836d559be063ee035ac2. Chain 2 (Bitcoin): anchored in block 957891 (2026-07-13T18:21:04Z), 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/ZAC031900868.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x41cca5d339d94f3a3df40746659032f03ee2f3cec103d10c0d6a8e269ed1ab95. 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/ZAC032307186.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x782fdb470f127cc384acf2af0ac2207ed8c64ea7f3bf6dc4c4785e4686898f12. Chain 2 (Bitcoin): anchored in block 958942 (2026-07-21T00:24:07Z), 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/ZAC031900850.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5469cc9916333a8b3f4bd404e2472717f7ee1718bb77bf38cf7fe78392c4ddd0. 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/ZAC031900855.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc307be4743c37d76dab25eca7bb8e3b54bb57e20908e3b147684e2f2ab131220. Chain 2 (Bitcoin): anchored in block 959043 (2026-07-21T18:40:26Z), 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/USA2P1318752.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x39e83ce1173a3de566932569d2caa971255fa9a3d7409a89e75eb54f43c159db. 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/USA2P1318762.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x44277454ea6a13895605a5176dd23089d6122a869f3cff98453a81e3d45ca9c1. Chain 2 (Bitcoin): anchored in block 959088 (2026-07-22T02:14:33Z), 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/ZAC030400450.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe3ca3fde6d2bb8fbe07872989300e03a7ee75a3be8f1b574c78bc283d3eeb193. Chain 2 (Bitcoin): anchored in block 958520 (2026-07-18T08:19:09Z), 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/USA2P1318756.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0c16076a9b48f1860077852daf74df50a01a1b4dbcd0b7711514b0f888230d23. 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/USA2P1318747.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x257a7ecc2c01ac07b073b366ce7769ae249dfdda4840e7f6dfa2aa79be77da13. 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/USA2P1318748.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x4cad5e70edba23947210058e65d0d7ee0da67a7e337d9aa94e40911698ae644e. Chain 2 (Bitcoin): anchored in block 958432 (2026-07-17T15:43:17Z), 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/USA2P1318760.
Great South African Performers - African Jazz Pioneers
Colours of Africa: African Jazz Pioneers (Collectors Edition)
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5d97b4cc602b9cc084b964c9d0a1f00575d875416cbfb6bcdeaee09b8bddda65. Chain 2 (Bitcoin): anchored in block 958746 (2026-07-19T15:36:35Z), 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/USA2P1318749.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x245c3a90d38e9a1226f330d94858dc2fb21e8bdbc24554962819c9b5138ec9f3. 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/USA2P1318751.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x115b146d23edd5bf3bd9d4a6a1c6f9ec44f1dd8d089a30af4b513b0cc70cdfa6. 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/USA2P1318746.